389613445

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{20047}}^1$

素因数の和:20101

約数の個数: 24

約数和(自身を含む): 528304896

約数和(自身を除く): 138691451

約数列:

[1, 5, 13, 23, 65, 115, 169, 299, 845, 1495, 3887, 19435, 20047, 100235, 260611, 461081, 1303055, 2305405, 3387943, 5994053, 16939715, 29970265, 77922689, 389613445]

約数ペア:

[(1, 389613445), (5, 77922689), (13, 29970265), (23, 16939715), (65, 5994053), (115, 3387943), (169, 2305405), (299, 1303055), (845, 461081), (1495, 260611), (3887, 100235), (19435, 20047)]