68402920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{499}}^1$

素因数の和:682

約数の個数: 64

約数和(自身を含む): 162000000

約数和(自身を除く): 93597080

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 149, 184, 230, 298, 460, 499, 596, 745, 920, 998, 1192, 1490, 1996, 2495, 2980, 3427, 3992, 4990, 5960, 6854, 9980, 11477, 13708, 17135, 19960, 22954, 27416, 34270, 45908, 57385, 68540, 74351, 91816, 114770, 137080, 148702, 229540, 297404, 371755, 459080, 594808, 743510, 1487020, 1710073, 2974040, 3420146, 6840292, 8550365, 13680584, 17100730, 34201460, 68402920]

約数ペア:

[(1, 68402920), (2, 34201460), (4, 17100730), (5, 13680584), (8, 8550365), (10, 6840292), (20, 3420146), (23, 2974040), (40, 1710073), (46, 1487020), (92, 743510), (115, 594808), (149, 459080), (184, 371755), (230, 297404), (298, 229540), (460, 148702), (499, 137080), (596, 114770), (745, 91816), (920, 74351), (998, 68540), (1192, 57385), (1490, 45908), (1996, 34270), (2495, 27416), (2980, 22954), (3427, 19960), (3992, 17135), (4990, 13708), (5960, 11477), (6854, 9980)]