123213025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{769}}^1$

素因数の和:838

約数の個数: 48

約数和(自身を含む): 180457200

約数和(自身を除く): 57244175

約数列:

[1, 5, 13, 17, 25, 29, 65, 85, 145, 221, 325, 377, 425, 493, 725, 769, 1105, 1885, 2465, 3845, 5525, 6409, 9425, 9997, 12325, 13073, 19225, 22301, 32045, 49985, 65365, 111505, 160225, 169949, 249925, 289913, 326825, 379117, 557525, 849745, 1449565, 1895585, 4248725, 4928521, 7247825, 9477925, 24642605, 123213025]

約数ペア:

[(1, 123213025), (5, 24642605), (13, 9477925), (17, 7247825), (25, 4928521), (29, 4248725), (65, 1895585), (85, 1449565), (145, 849745), (221, 557525), (325, 379117), (377, 326825), (425, 289913), (493, 249925), (725, 169949), (769, 160225), (1105, 111505), (1885, 65365), (2465, 49985), (3845, 32045), (5525, 22301), (6409, 19225), (9425, 13073), (9997, 12325)]