19896800

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:74

約数の個数: 288

約数和(自身を含む): 67495680

約数和(自身を除く): 47598880

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 17, 19, 20, 22, 25, 28, 32, 34, 35, 38, 40, 44, 50, 55, 56, 68, 70, 76, 77, 80, 85, 88, 95, 100, 110, 112, 119, 133, 136, 140, 152, 154, 160, 170, 175, 176, 187, 190, 200, 209, 220, 224, 238, 266, 272, 275, 280, 304, 308, 323, 340, 350, 352, 374, 380, 385, 400, 418, 425, 440, 475, 476, 532, 544, 550, 560, 595, 608, 616, 646, 665, 680, 700, 748, 760, 770, 800, 836, 850, 880, 935, 950, 952, 1045, 1064, 1100, 1120, 1190, 1232, 1292, 1309, 1330, 1360, 1400, 1463, 1496, 1520, 1540, 1615, 1672, 1700, 1760, 1870, 1900, 1904, 1925, 2090, 2128, 2200, 2261, 2380, 2464, 2584, 2618, 2660, 2720, 2800, 2926, 2975, 2992, 3040, 3080, 3230, 3325, 3344, 3400, 3553, 3740, 3800, 3808, 3850, 4180, 4256, 4400, 4522, 4675, 4760, 5168, 5225, 5236, 5320, 5600, 5852, 5950, 5984, 6160, 6460, 6545, 6650, 6688, 6800, 7106, 7315, 7480, 7600, 7700, 8075, 8360, 8800, 9044, 9350, 9520, 10336, 10450, 10472, 10640, 11305, 11704, 11900, 12320, 12920, 13090, 13300, 13600, 14212, 14630, 14960, 15200, 15400, 16150, 16720, 17765, 18088, 18700, 19040, 20900, 20944, 21280, 22610, 23408, 23800, 24871, 25840, 26180, 26600, 28424, 29260, 29920, 30800, 32300, 32725, 33440, 35530, 36176, 36575, 37400, 41800, 41888, 45220, 46816, 47600, 49742, 51680, 52360, 53200, 56525, 56848, 58520, 61600, 64600, 65450, 71060, 72352, 73150, 74800, 83600, 88825, 90440, 95200, 99484, 104720, 106400, 113050, 113696, 117040, 124355, 129200, 130900, 142120, 146300, 149600, 167200, 177650, 180880, 198968, 209440, 226100, 234080, 248710, 258400, 261800, 284240, 292600, 355300, 361760, 397936, 452200, 497420, 523600, 568480, 585200, 621775, 710600, 795872, 904400, 994840, 1047200, 1170400, 1243550, 1421200, 1808800, 1989680, 2487100, 2842400, 3979360, 4974200, 9948400, 19896800]

約数ペア:

[(1, 19896800), (2, 9948400), (4, 4974200), (5, 3979360), (7, 2842400), (8, 2487100), (10, 1989680), (11, 1808800), (14, 1421200), (16, 1243550), (17, 1170400), (19, 1047200), (20, 994840), (22, 904400), (25, 795872), (28, 710600), (32, 621775), (34, 585200), (35, 568480), (38, 523600), (40, 497420), (44, 452200), (50, 397936), (55, 361760), (56, 355300), (68, 292600), (70, 284240), (76, 261800), (77, 258400), (80, 248710), (85, 234080), (88, 226100), (95, 209440), (100, 198968), (110, 180880), (112, 177650), (119, 167200), (133, 149600), (136, 146300), (140, 142120), (152, 130900), (154, 129200), (160, 124355), (170, 117040), (175, 113696), (176, 113050), (187, 106400), (190, 104720), (200, 99484), (209, 95200), (220, 90440), (224, 88825), (238, 83600), (266, 74800), (272, 73150), (275, 72352), (280, 71060), (304, 65450), (308, 64600), (323, 61600), (340, 58520), (350, 56848), (352, 56525), (374, 53200), (380, 52360), (385, 51680), (400, 49742), (418, 47600), (425, 46816), (440, 45220), (475, 41888), (476, 41800), (532, 37400), (544, 36575), (550, 36176), (560, 35530), (595, 33440), (608, 32725), (616, 32300), (646, 30800), (665, 29920), (680, 29260), (700, 28424), (748, 26600), (760, 26180), (770, 25840), (800, 24871), (836, 23800), (850, 23408), (880, 22610), (935, 21280), (950, 20944), (952, 20900), (1045, 19040), (1064, 18700), (1100, 18088), (1120, 17765), (1190, 16720), (1232, 16150), (1292, 15400), (1309, 15200), (1330, 14960), (1360, 14630), (1400, 14212), (1463, 13600), (1496, 13300), (1520, 13090), (1540, 12920), (1615, 12320), (1672, 11900), (1700, 11704), (1760, 11305), (1870, 10640), (1900, 10472), (1904, 10450), (1925, 10336), (2090, 9520), (2128, 9350), (2200, 9044), (2261, 8800), (2380, 8360), (2464, 8075), (2584, 7700), (2618, 7600), (2660, 7480), (2720, 7315), (2800, 7106), (2926, 6800), (2975, 6688), (2992, 6650), (3040, 6545), (3080, 6460), (3230, 6160), (3325, 5984), (3344, 5950), (3400, 5852), (3553, 5600), (3740, 5320), (3800, 5236), (3808, 5225), (3850, 5168), (4180, 4760), (4256, 4675), (4400, 4522)]