68787640

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{457}}^1$

素因数の和:592

約数の個数: 64

約数和(自身を含む): 160263360

約数和(自身を除く): 91475720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 71, 106, 142, 212, 265, 284, 355, 424, 457, 530, 568, 710, 914, 1060, 1420, 1828, 2120, 2285, 2840, 3656, 3763, 4570, 7526, 9140, 15052, 18280, 18815, 24221, 30104, 32447, 37630, 48442, 64894, 75260, 96884, 121105, 129788, 150520, 162235, 193768, 242210, 259576, 324470, 484420, 648940, 968840, 1297880, 1719691, 3439382, 6878764, 8598455, 13757528, 17196910, 34393820, 68787640]

約数ペア:

[(1, 68787640), (2, 34393820), (4, 17196910), (5, 13757528), (8, 8598455), (10, 6878764), (20, 3439382), (40, 1719691), (53, 1297880), (71, 968840), (106, 648940), (142, 484420), (212, 324470), (265, 259576), (284, 242210), (355, 193768), (424, 162235), (457, 150520), (530, 129788), (568, 121105), (710, 96884), (914, 75260), (1060, 64894), (1420, 48442), (1828, 37630), (2120, 32447), (2285, 30104), (2840, 24221), (3656, 18815), (3763, 18280), (4570, 15052), (7526, 9140)]