168677620

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{39971}}^1$

素因数の和:40191

約数の個数: 24

約数和(自身を含む): 355910688

約数和(自身を除く): 187233068

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110, 4220, 39971, 79942, 159884, 199855, 399710, 799420, 8433881, 16867762, 33735524, 42169405, 84338810, 168677620]

約数ペア:

[(1, 168677620), (2, 84338810), (4, 42169405), (5, 33735524), (10, 16867762), (20, 8433881), (211, 799420), (422, 399710), (844, 199855), (1055, 159884), (2110, 79942), (4220, 39971)]