11209640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{21557}}^1$

素因数の和:21581

約数の個数: 32

約数和(自身を含む): 27163080

約数和(自身を除く): 15953440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 21557, 43114, 86228, 107785, 172456, 215570, 280241, 431140, 560482, 862280, 1120964, 1401205, 2241928, 2802410, 5604820, 11209640]

約数ペア:

[(1, 11209640), (2, 5604820), (4, 2802410), (5, 2241928), (8, 1401205), (10, 1120964), (13, 862280), (20, 560482), (26, 431140), (40, 280241), (52, 215570), (65, 172456), (104, 107785), (130, 86228), (260, 43114), (520, 21557)]