79665020

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{9739}}^1$

素因数の和:10157

約数の個数: 24

約数和(自身を含む): 167722800

約数和(自身を除く): 88057780

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 4090, 8180, 9739, 19478, 38956, 48695, 97390, 194780, 3983251, 7966502, 15933004, 19916255, 39832510, 79665020]

約数ペア:

[(1, 79665020), (2, 39832510), (4, 19916255), (5, 15933004), (10, 7966502), (20, 3983251), (409, 194780), (818, 97390), (1636, 48695), (2045, 38956), (4090, 19478), (8180, 9739)]