656760940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{13151}}^1$

素因数の和:13398

約数の個数: 48

約数和(自身を含む): 1511322624

約数和(自身を除く): 854561684

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 227, 454, 908, 1135, 2270, 2497, 4540, 4994, 9988, 12485, 13151, 24970, 26302, 49940, 52604, 65755, 131510, 144661, 263020, 289322, 578644, 723305, 1446610, 2893220, 2985277, 5970554, 11941108, 14926385, 29852770, 32838047, 59705540, 65676094, 131352188, 164190235, 328380470, 656760940]

約数ペア:

[(1, 656760940), (2, 328380470), (4, 164190235), (5, 131352188), (10, 65676094), (11, 59705540), (20, 32838047), (22, 29852770), (44, 14926385), (55, 11941108), (110, 5970554), (220, 2985277), (227, 2893220), (454, 1446610), (908, 723305), (1135, 578644), (2270, 289322), (2497, 263020), (4540, 144661), (4994, 131510), (9988, 65755), (12485, 52604), (13151, 49940), (24970, 26302)]