131580028

素因数分解:

$2^2\times {\mathrm{103}}^1\times {\mathrm{389}}^1\times {\mathrm{821}}^1$

素因数の和:1317

約数の個数: 24

約数和(自身を含む): 233382240

約数和(自身を除く): 101802212

約数列:

[1, 2, 4, 103, 206, 389, 412, 778, 821, 1556, 1642, 3284, 40067, 80134, 84563, 160268, 169126, 319369, 338252, 638738, 1277476, 32895007, 65790014, 131580028]

約数ペア:

[(1, 131580028), (2, 65790014), (4, 32895007), (103, 1277476), (206, 638738), (389, 338252), (412, 319369), (778, 169126), (821, 160268), (1556, 84563), (1642, 80134), (3284, 40067)]