90254890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{2351}}^1$

素因数の和:2718

約数の個数: 32

約数和(自身を含む): 177811200

約数和(自身を除く): 87556310

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 349, 698, 1745, 2351, 3490, 3839, 4702, 7678, 11755, 19195, 23510, 25861, 38390, 51722, 129305, 258610, 820499, 1640998, 4102495, 8204990, 9025489, 18050978, 45127445, 90254890]

約数ペア:

[(1, 90254890), (2, 45127445), (5, 18050978), (10, 9025489), (11, 8204990), (22, 4102495), (55, 1640998), (110, 820499), (349, 258610), (698, 129305), (1745, 51722), (2351, 38390), (3490, 25861), (3839, 23510), (4702, 19195), (7678, 11755)]