155280377680

素因数分解:

$2^4\times 5^1\times {\mathrm{1941004721}}^1$

素因数の和:1941004734

約数の個数: 20

約数和(自身を含む): 361026878292

約数和(自身を除く): 205746500612

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1941004721, 3882009442, 7764018884, 9705023605, 15528037768, 19410047210, 31056075536, 38820094420, 77640188840, 155280377680]

約数ペア:

[(1, 155280377680), (2, 77640188840), (4, 38820094420), (5, 31056075536), (8, 19410047210), (10, 15528037768), (16, 9705023605), (20, 7764018884), (40, 3882009442), (80, 1941004721)]