15721495975

素因数分解:

$5^2\times {\mathrm{16729}}^1\times {\mathrm{37591}}^1$

素因数の和:54330

約数の個数: 12

約数和(自身を含む): 19496338960

約数和(自身を除く): 3774842985

約数列:

[1, 5, 25, 16729, 37591, 83645, 187955, 418225, 939775, 628859839, 3144299195, 15721495975]

約数ペア:

[(1, 15721495975), (5, 3144299195), (25, 628859839), (16729, 939775), (37591, 418225), (83645, 187955)]