20069515

素因数分解:

$5^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{431}}^1$

素因数の和:642

約数の個数: 16

約数和(自身を含む): 24675840

約数和(自身を除く): 4606325

約数列:

[1, 5, 67, 139, 335, 431, 695, 2155, 9313, 28877, 46565, 59909, 144385, 299545, 4013903, 20069515]

約数ペア:

[(1, 20069515), (5, 4013903), (67, 299545), (139, 144385), (335, 59909), (431, 46565), (695, 28877), (2155, 9313)]