12768925

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{389}}^1$

素因数の和:513

約数の個数: 24

約数和(自身を含む): 17264520

約数和(自身を除く): 4495595

約数列:

[1, 5, 13, 25, 65, 101, 325, 389, 505, 1313, 1945, 2525, 5057, 6565, 9725, 25285, 32825, 39289, 126425, 196445, 510757, 982225, 2553785, 12768925]

約数ペア:

[(1, 12768925), (5, 2553785), (13, 982225), (25, 510757), (65, 196445), (101, 126425), (325, 39289), (389, 32825), (505, 25285), (1313, 9725), (1945, 6565), (2525, 5057)]