1296256920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{3967}}^1$

素因数の和:4377

約数の個数: 128

約数和(自身を含む): 4456857600

約数和(自身を除く): 3160600680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 389, 420, 778, 840, 1167, 1556, 1945, 2334, 2723, 3112, 3890, 3967, 4668, 5446, 5835, 7780, 7934, 8169, 9336, 10892, 11670, 11901, 13615, 15560, 15868, 16338, 19835, 21784, 23340, 23802, 27230, 27769, 31736, 32676, 39670, 40845, 46680, 47604, 54460, 55538, 59505, 65352, 79340, 81690, 83307, 95208, 108920, 111076, 119010, 138845, 158680, 163380, 166614, 222152, 238020, 277690, 326760, 333228, 416535, 476040, 555380, 666456, 833070, 1110760, 1543163, 1666140, 3086326, 3332280, 4629489, 6172652, 7715815, 9258978, 10802141, 12345304, 15431630, 18517956, 21604282, 23147445, 30863260, 32406423, 37035912, 43208564, 46294890, 54010705, 61726520, 64812846, 86417128, 92589780, 108021410, 129625692, 162032115, 185179560, 216042820, 259251384, 324064230, 432085640, 648128460, 1296256920]

約数ペア:

[(1, 1296256920), (2, 648128460), (3, 432085640), (4, 324064230), (5, 259251384), (6, 216042820), (7, 185179560), (8, 162032115), (10, 129625692), (12, 108021410), (14, 92589780), (15, 86417128), (20, 64812846), (21, 61726520), (24, 54010705), (28, 46294890), (30, 43208564), (35, 37035912), (40, 32406423), (42, 30863260), (56, 23147445), (60, 21604282), (70, 18517956), (84, 15431630), (105, 12345304), (120, 10802141), (140, 9258978), (168, 7715815), (210, 6172652), (280, 4629489), (389, 3332280), (420, 3086326), (778, 1666140), (840, 1543163), (1167, 1110760), (1556, 833070), (1945, 666456), (2334, 555380), (2723, 476040), (3112, 416535), (3890, 333228), (3967, 326760), (4668, 277690), (5446, 238020), (5835, 222152), (7780, 166614), (7934, 163380), (8169, 158680), (9336, 138845), (10892, 119010), (11670, 111076), (11901, 108920), (13615, 95208), (15560, 83307), (15868, 81690), (16338, 79340), (19835, 65352), (21784, 59505), (23340, 55538), (23802, 54460), (27230, 47604), (27769, 46680), (31736, 40845), (32676, 39670)]