91288990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{18979}}^1$

素因数の和:19036

約数の個数: 32

約数和(自身を含む): 181752480

約数和(自身を除く): 90463490

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 185, 370, 481, 962, 2405, 4810, 18979, 37958, 94895, 189790, 246727, 493454, 702223, 1233635, 1404446, 2467270, 3511115, 7022230, 9128899, 18257798, 45644495, 91288990]

約数ペア:

[(1, 91288990), (2, 45644495), (5, 18257798), (10, 9128899), (13, 7022230), (26, 3511115), (37, 2467270), (65, 1404446), (74, 1233635), (130, 702223), (185, 493454), (370, 246727), (481, 189790), (962, 94895), (2405, 37958), (4810, 18979)]