68639140

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{35381}}^1$

素因数の和:35487

約数の個数: 24

約数和(自身を含む): 145632312

約数和(自身を除く): 76993172

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 35381, 70762, 141524, 176905, 353810, 707620, 3431957, 6863914, 13727828, 17159785, 34319570, 68639140]

約数ペア:

[(1, 68639140), (2, 34319570), (4, 17159785), (5, 13727828), (10, 6863914), (20, 3431957), (97, 707620), (194, 353810), (388, 176905), (485, 141524), (970, 70762), (1940, 35381)]