12780490775

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2313211}}^1$

素因数の和:2313251

約数の個数: 24

約数和(自身を含む): 18070812144

約数和(自身を除く): 5290321369

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 325, 425, 1105, 5525, 2313211, 11566055, 30071743, 39324587, 57830275, 150358715, 196622935, 511219631, 751793575, 983114675, 2556098155, 12780490775]

約数ペア:

[(1, 12780490775), (5, 2556098155), (13, 983114675), (17, 751793575), (25, 511219631), (65, 196622935), (85, 150358715), (221, 57830275), (325, 39324587), (425, 30071743), (1105, 11566055), (5525, 2313211)]