67564820

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{55381}}^1$

素因数の和:55451

約数の個数: 24

約数和(自身を含む): 144214728

約数和(自身を除く): 76649908

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 55381, 110762, 221524, 276905, 553810, 1107620, 3378241, 6756482, 13512964, 16891205, 33782410, 67564820]

約数ペア:

[(1, 67564820), (2, 33782410), (4, 16891205), (5, 13512964), (10, 6756482), (20, 3378241), (61, 1107620), (122, 553810), (244, 276905), (305, 221524), (610, 110762), (1220, 55381)]