21080198400

素因数分解:

$2^8\times 3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{331}}^1$

素因数の和:498

約数の個数: 432

約数和(自身を含む): 72703346688

約数和(自身を除く): 51623148288

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 31, 32, 40, 48, 50, 60, 62, 64, 75, 80, 93, 96, 100, 107, 120, 124, 128, 150, 155, 160, 186, 192, 200, 214, 240, 248, 256, 300, 310, 320, 321, 331, 372, 384, 400, 428, 465, 480, 496, 535, 600, 620, 640, 642, 662, 744, 768, 775, 800, 856, 930, 960, 992, 993, 1070, 1200, 1240, 1280, 1284, 1324, 1488, 1550, 1600, 1605, 1655, 1712, 1860, 1920, 1984, 1986, 2140, 2325, 2400, 2480, 2568, 2648, 2675, 2976, 3100, 3200, 3210, 3310, 3317, 3424, 3720, 3840, 3968, 3972, 4280, 4650, 4800, 4960, 4965, 5136, 5296, 5350, 5952, 6200, 6400, 6420, 6620, 6634, 6848, 7440, 7936, 7944, 8025, 8275, 8560, 9300, 9600, 9920, 9930, 9951, 10261, 10272, 10592, 10700, 11904, 12400, 12840, 13240, 13268, 13696, 14880, 15888, 16050, 16550, 16585, 17120, 18600, 19200, 19840, 19860, 19902, 20522, 20544, 21184, 21400, 23808, 24800, 24825, 25680, 26480, 26536, 27392, 29760, 30783, 31776, 32100, 33100, 33170, 34240, 35417, 37200, 39680, 39720, 39804, 41044, 41088, 42368, 42800, 49600, 49650, 49755, 51305, 51360, 52960, 53072, 59520, 61566, 63552, 64200, 66200, 66340, 68480, 70834, 74400, 79440, 79608, 82088, 82176, 82925, 84736, 85600, 99200, 99300, 99510, 102610, 102720, 105920, 106144, 106251, 119040, 123132, 127104, 128400, 132400, 132680, 136960, 141668, 148800, 153915, 158880, 159216, 164176, 165850, 171200, 177085, 198400, 198600, 199020, 205220, 205440, 211840, 212288, 212502, 246264, 248775, 254208, 256525, 256800, 264800, 265360, 283336, 297600, 307830, 317760, 318432, 328352, 331700, 342400, 354170, 397200, 398040, 410440, 410880, 423680, 424576, 425004, 492528, 497550, 513050, 513600, 529600, 530720, 531255, 566672, 595200, 615660, 635520, 636864, 656704, 663400, 684800, 708340, 769575, 794400, 796080, 820880, 849152, 850008, 885425, 985056, 995100, 1026100, 1027200, 1059200, 1061440, 1062510, 1097927, 1133344, 1231320, 1271040, 1273728, 1313408, 1326800, 1416680, 1539150, 1588800, 1592160, 1641760, 1700016, 1770850, 1970112, 1990200, 2052200, 2054400, 2118400, 2122880, 2125020, 2195854, 2266688, 2462640, 2547456, 2626816, 2653600, 2656275, 2833360, 3078300, 3177600, 3184320, 3283520, 3293781, 3400032, 3541700, 3940224, 3980400, 4104400, 4245760, 4250040, 4391708, 4533376, 4925280, 5307200, 5312550, 5489635, 5666720, 6156600, 6355200, 6368640, 6567040, 6587562, 6800064, 7083400, 7880448, 7960800, 8208800, 8500080, 8783416, 9066752, 9850560, 10614400, 10625100, 10979270, 11333440, 12313200, 12737280, 13134080, 13175124, 13600128, 14166800, 15921600, 16417600, 16468905, 17000160, 17566832, 19701120, 21228800, 21250200, 21958540, 22666880, 24626400, 26350248, 27200256, 27448175, 28333600, 31843200, 32835200, 32937810, 34000320, 35133664, 39402240, 42500400, 43917080, 45333760, 49252800, 52700496, 54896350, 56667200, 63686400, 65670400, 65875620, 68000640, 70267328, 82344525, 85000800, 87834160, 98505600, 105400992, 109792700, 113334400, 131751240, 136001280, 140534656, 164689050, 170001600, 175668320, 197011200, 210801984, 219585400, 226668800, 263502480, 281069312, 329378100, 340003200, 351336640, 421603968, 439170800, 527004960, 658756200, 680006400, 702673280, 843207936, 878341600, 1054009920, 1317512400, 1405346560, 1756683200, 2108019840, 2635024800, 3513366400, 4216039680, 5270049600, 7026732800, 10540099200, 21080198400]

約数ペア:

[(1, 21080198400), (2, 10540099200), (3, 7026732800), (4, 5270049600), (5, 4216039680), (6, 3513366400), (8, 2635024800), (10, 2108019840), (12, 1756683200), (15, 1405346560), (16, 1317512400), (20, 1054009920), (24, 878341600), (25, 843207936), (30, 702673280), (31, 680006400), (32, 658756200), (40, 527004960), (48, 439170800), (50, 421603968), (60, 351336640), (62, 340003200), (64, 329378100), (75, 281069312), (80, 263502480), (93, 226668800), (96, 219585400), (100, 210801984), (107, 197011200), (120, 175668320), (124, 170001600), (128, 164689050), (150, 140534656), (155, 136001280), (160, 131751240), (186, 113334400), (192, 109792700), (200, 105400992), (214, 98505600), (240, 87834160), (248, 85000800), (256, 82344525), (300, 70267328), (310, 68000640), (320, 65875620), (321, 65670400), (331, 63686400), (372, 56667200), (384, 54896350), (400, 52700496), (428, 49252800), (465, 45333760), (480, 43917080), (496, 42500400), (535, 39402240), (600, 35133664), (620, 34000320), (640, 32937810), (642, 32835200), (662, 31843200), (744, 28333600), (768, 27448175), (775, 27200256), (800, 26350248), (856, 24626400), (930, 22666880), (960, 21958540), (992, 21250200), (993, 21228800), (1070, 19701120), (1200, 17566832), (1240, 17000160), (1280, 16468905), (1284, 16417600), (1324, 15921600), (1488, 14166800), (1550, 13600128), (1600, 13175124), (1605, 13134080), (1655, 12737280), (1712, 12313200), (1860, 11333440), (1920, 10979270), (1984, 10625100), (1986, 10614400), (2140, 9850560), (2325, 9066752), (2400, 8783416), (2480, 8500080), (2568, 8208800), (2648, 7960800), (2675, 7880448), (2976, 7083400), (3100, 6800064), (3200, 6587562), (3210, 6567040), (3310, 6368640), (3317, 6355200), (3424, 6156600), (3720, 5666720), (3840, 5489635), (3968, 5312550), (3972, 5307200), (4280, 4925280), (4650, 4533376), (4800, 4391708), (4960, 4250040), (4965, 4245760), (5136, 4104400), (5296, 3980400), (5350, 3940224), (5952, 3541700), (6200, 3400032), (6400, 3293781), (6420, 3283520), (6620, 3184320), (6634, 3177600), (6848, 3078300), (7440, 2833360), (7936, 2656275), (7944, 2653600), (8025, 2626816), (8275, 2547456), (8560, 2462640), (9300, 2266688), (9600, 2195854), (9920, 2125020), (9930, 2122880), (9951, 2118400), (10261, 2054400), (10272, 2052200), (10592, 1990200), (10700, 1970112), (11904, 1770850), (12400, 1700016), (12840, 1641760), (13240, 1592160), (13268, 1588800), (13696, 1539150), (14880, 1416680), (15888, 1326800), (16050, 1313408), (16550, 1273728), (16585, 1271040), (17120, 1231320), (18600, 1133344), (19200, 1097927), (19840, 1062510), (19860, 1061440), (19902, 1059200), (20522, 1027200), (20544, 1026100), (21184, 995100), (21400, 985056), (23808, 885425), (24800, 850008), (24825, 849152), (25680, 820880), (26480, 796080), (26536, 794400), (27392, 769575), (29760, 708340), (30783, 684800), (31776, 663400), (32100, 656704), (33100, 636864), (33170, 635520), (34240, 615660), (35417, 595200), (37200, 566672), (39680, 531255), (39720, 530720), (39804, 529600), (41044, 513600), (41088, 513050), (42368, 497550), (42800, 492528), (49600, 425004), (49650, 424576), (49755, 423680), (51305, 410880), (51360, 410440), (52960, 398040), (53072, 397200), (59520, 354170), (61566, 342400), (63552, 331700), (64200, 328352), (66200, 318432), (66340, 317760), (68480, 307830), (70834, 297600), (74400, 283336), (79440, 265360), (79608, 264800), (82088, 256800), (82176, 256525), (82925, 254208), (84736, 248775), (85600, 246264), (99200, 212502), (99300, 212288), (99510, 211840), (102610, 205440), (102720, 205220), (105920, 199020), (106144, 198600), (106251, 198400), (119040, 177085), (123132, 171200), (127104, 165850), (128400, 164176), (132400, 159216), (132680, 158880), (136960, 153915), (141668, 148800)]