81585020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{6997}}^1$

素因数の和:7070

約数の個数: 48

約数和(自身を含む): 190457568

約数和(自身を除く): 108872548

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 53, 55, 106, 110, 212, 220, 265, 530, 583, 1060, 1166, 2332, 2915, 5830, 6997, 11660, 13994, 27988, 34985, 69970, 76967, 139940, 153934, 307868, 370841, 384835, 741682, 769670, 1483364, 1539340, 1854205, 3708410, 4079251, 7416820, 8158502, 16317004, 20396255, 40792510, 81585020]

約数ペア:

[(1, 81585020), (2, 40792510), (4, 20396255), (5, 16317004), (10, 8158502), (11, 7416820), (20, 4079251), (22, 3708410), (44, 1854205), (53, 1539340), (55, 1483364), (106, 769670), (110, 741682), (212, 384835), (220, 370841), (265, 307868), (530, 153934), (583, 139940), (1060, 76967), (1166, 69970), (2332, 34985), (2915, 27988), (5830, 13994), (6997, 11660)]