12689525

素因数分解:

$5^2\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:281

約数の個数: 24

約数和(自身を含む): 16398504

約数和(自身を除く): 3708979

約数列:

[1, 5, 25, 53, 61, 157, 265, 305, 785, 1325, 1525, 3233, 3925, 8321, 9577, 16165, 41605, 47885, 80825, 208025, 239425, 507581, 2537905, 12689525]

約数ペア:

[(1, 12689525), (5, 2537905), (25, 507581), (53, 239425), (61, 208025), (157, 80825), (265, 47885), (305, 41605), (785, 16165), (1325, 9577), (1525, 8321), (3233, 3925)]