31978020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{293}}^1$

素因数の和:429

約数の個数: 96

約数和(自身を含む): 96018048

約数和(自身を除く): 64040028

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 107, 170, 204, 214, 255, 293, 321, 340, 428, 510, 535, 586, 642, 879, 1020, 1070, 1172, 1284, 1465, 1605, 1758, 1819, 2140, 2930, 3210, 3516, 3638, 4395, 4981, 5457, 5860, 6420, 7276, 8790, 9095, 9962, 10914, 14943, 17580, 18190, 19924, 21828, 24905, 27285, 29886, 31351, 36380, 49810, 54570, 59772, 62702, 74715, 94053, 99620, 109140, 125404, 149430, 156755, 188106, 298860, 313510, 376212, 470265, 532967, 627020, 940530, 1065934, 1598901, 1881060, 2131868, 2664835, 3197802, 5329670, 6395604, 7994505, 10659340, 15989010, 31978020]

約数ペア:

[(1, 31978020), (2, 15989010), (3, 10659340), (4, 7994505), (5, 6395604), (6, 5329670), (10, 3197802), (12, 2664835), (15, 2131868), (17, 1881060), (20, 1598901), (30, 1065934), (34, 940530), (51, 627020), (60, 532967), (68, 470265), (85, 376212), (102, 313510), (107, 298860), (170, 188106), (204, 156755), (214, 149430), (255, 125404), (293, 109140), (321, 99620), (340, 94053), (428, 74715), (510, 62702), (535, 59772), (586, 54570), (642, 49810), (879, 36380), (1020, 31351), (1070, 29886), (1172, 27285), (1284, 24905), (1465, 21828), (1605, 19924), (1758, 18190), (1819, 17580), (2140, 14943), (2930, 10914), (3210, 9962), (3516, 9095), (3638, 8790), (4395, 7276), (4981, 6420), (5457, 5860)]