79557640

素因数分解:

$2^3\times 5^1\times {\mathrm{1988941}}^1$

素因数の和:1988952

約数の個数: 16

約数和(自身を含む): 179004780

約数和(自身を除く): 99447140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1988941, 3977882, 7955764, 9944705, 15911528, 19889410, 39778820, 79557640]

約数ペア:

[(1, 79557640), (2, 39778820), (4, 19889410), (5, 15911528), (8, 9944705), (10, 7955764), (20, 3977882), (40, 1988941)]