389640485

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{457}}^1\times {\mathrm{1009}}^1$

素因数の和:1497

約数の個数: 24

約数和(自身を含む): 507912840

約数和(自身を除く): 118272355

約数列:

[1, 5, 13, 65, 169, 457, 845, 1009, 2285, 5045, 5941, 13117, 29705, 65585, 77233, 170521, 386165, 461113, 852605, 2305565, 5994469, 29972345, 77928097, 389640485]

約数ペア:

[(1, 389640485), (5, 77928097), (13, 29972345), (65, 5994469), (169, 2305565), (457, 852605), (845, 461113), (1009, 386165), (2285, 170521), (5045, 77233), (5941, 65585), (13117, 29705)]