80108620

素因数分解:

$2^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{12101}}^1$

素因数の和:12441

約数の個数: 24

約数和(自身を含む): 168750288

約数和(自身を除く): 88641668

約数列:

[1, 2, 4, 5, 10, 20, 331, 662, 1324, 1655, 3310, 6620, 12101, 24202, 48404, 60505, 121010, 242020, 4005431, 8010862, 16021724, 20027155, 40054310, 80108620]

約数ペア:

[(1, 80108620), (2, 40054310), (4, 20027155), (5, 16021724), (10, 8010862), (20, 4005431), (331, 242020), (662, 121010), (1324, 60505), (1655, 48404), (3310, 24202), (6620, 12101)]