70807580

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{457}}^1$

素因数の和:654

約数の個数: 48

約数和(自身を含む): 152656896

約数和(自身を除く): 81849316

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 127, 244, 254, 305, 457, 508, 610, 635, 914, 1220, 1270, 1828, 2285, 2540, 4570, 7747, 9140, 15494, 27877, 30988, 38735, 55754, 58039, 77470, 111508, 116078, 139385, 154940, 232156, 278770, 290195, 557540, 580390, 1160780, 3540379, 7080758, 14161516, 17701895, 35403790, 70807580]

約数ペア:

[(1, 70807580), (2, 35403790), (4, 17701895), (5, 14161516), (10, 7080758), (20, 3540379), (61, 1160780), (122, 580390), (127, 557540), (244, 290195), (254, 278770), (305, 232156), (457, 154940), (508, 139385), (610, 116078), (635, 111508), (914, 77470), (1220, 58039), (1270, 55754), (1828, 38735), (2285, 30988), (2540, 27877), (4570, 15494), (7747, 9140)]