400391040

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^3$

素因数の和:122

約数の個数: 256

約数和(自身を含む): 1507184640

約数和(自身を除く): 1106793600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 32, 35, 40, 42, 48, 56, 60, 62, 64, 70, 80, 84, 93, 96, 105, 112, 120, 124, 128, 140, 155, 160, 168, 186, 192, 210, 217, 224, 240, 248, 280, 310, 320, 336, 372, 384, 420, 434, 448, 465, 480, 496, 560, 620, 640, 651, 672, 744, 840, 868, 896, 930, 960, 961, 992, 1085, 1120, 1240, 1302, 1344, 1488, 1680, 1736, 1860, 1920, 1922, 1984, 2170, 2240, 2480, 2604, 2688, 2883, 2976, 3255, 3360, 3472, 3720, 3844, 3968, 4340, 4480, 4805, 4960, 5208, 5766, 5952, 6510, 6720, 6727, 6944, 7440, 7688, 8680, 9610, 9920, 10416, 11532, 11904, 13020, 13440, 13454, 13888, 14415, 14880, 15376, 17360, 19220, 19840, 20181, 20832, 23064, 26040, 26908, 27776, 28830, 29760, 29791, 30752, 33635, 34720, 38440, 40362, 41664, 46128, 52080, 53816, 57660, 59520, 59582, 61504, 67270, 69440, 76880, 80724, 83328, 89373, 92256, 100905, 104160, 107632, 115320, 119164, 123008, 134540, 138880, 148955, 153760, 161448, 178746, 184512, 201810, 208320, 208537, 215264, 230640, 238328, 269080, 297910, 307520, 322896, 357492, 369024, 403620, 416640, 417074, 430528, 446865, 461280, 476656, 538160, 595820, 615040, 625611, 645792, 714984, 807240, 834148, 861056, 893730, 922560, 953312, 1042685, 1076320, 1191640, 1251222, 1291584, 1429968, 1614480, 1668296, 1787460, 1845120, 1906624, 2085370, 2152640, 2383280, 2502444, 2583168, 2859936, 3128055, 3228960, 3336592, 3574920, 3813248, 4170740, 4305280, 4766560, 5004888, 5719872, 6256110, 6457920, 6673184, 7149840, 8341480, 9533120, 10009776, 11439744, 12512220, 12915840, 13346368, 14299680, 16682960, 19066240, 20019552, 25024440, 26692736, 28599360, 33365920, 40039104, 50048880, 57198720, 66731840, 80078208, 100097760, 133463680, 200195520, 400391040]

約数ペア:

[(1, 400391040), (2, 200195520), (3, 133463680), (4, 100097760), (5, 80078208), (6, 66731840), (7, 57198720), (8, 50048880), (10, 40039104), (12, 33365920), (14, 28599360), (15, 26692736), (16, 25024440), (20, 20019552), (21, 19066240), (24, 16682960), (28, 14299680), (30, 13346368), (31, 12915840), (32, 12512220), (35, 11439744), (40, 10009776), (42, 9533120), (48, 8341480), (56, 7149840), (60, 6673184), (62, 6457920), (64, 6256110), (70, 5719872), (80, 5004888), (84, 4766560), (93, 4305280), (96, 4170740), (105, 3813248), (112, 3574920), (120, 3336592), (124, 3228960), (128, 3128055), (140, 2859936), (155, 2583168), (160, 2502444), (168, 2383280), (186, 2152640), (192, 2085370), (210, 1906624), (217, 1845120), (224, 1787460), (240, 1668296), (248, 1614480), (280, 1429968), (310, 1291584), (320, 1251222), (336, 1191640), (372, 1076320), (384, 1042685), (420, 953312), (434, 922560), (448, 893730), (465, 861056), (480, 834148), (496, 807240), (560, 714984), (620, 645792), (640, 625611), (651, 615040), (672, 595820), (744, 538160), (840, 476656), (868, 461280), (896, 446865), (930, 430528), (960, 417074), (961, 416640), (992, 403620), (1085, 369024), (1120, 357492), (1240, 322896), (1302, 307520), (1344, 297910), (1488, 269080), (1680, 238328), (1736, 230640), (1860, 215264), (1920, 208537), (1922, 208320), (1984, 201810), (2170, 184512), (2240, 178746), (2480, 161448), (2604, 153760), (2688, 148955), (2883, 138880), (2976, 134540), (3255, 123008), (3360, 119164), (3472, 115320), (3720, 107632), (3844, 104160), (3968, 100905), (4340, 92256), (4480, 89373), (4805, 83328), (4960, 80724), (5208, 76880), (5766, 69440), (5952, 67270), (6510, 61504), (6720, 59582), (6727, 59520), (6944, 57660), (7440, 53816), (7688, 52080), (8680, 46128), (9610, 41664), (9920, 40362), (10416, 38440), (11532, 34720), (11904, 33635), (13020, 30752), (13440, 29791), (13454, 29760), (13888, 28830), (14415, 27776), (14880, 26908), (15376, 26040), (17360, 23064), (19220, 20832), (19840, 20181)]