12867725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{137}}^1$

素因数の和:194

約数の個数: 36

約数和(自身を含む): 18386844

約数和(自身を除く): 5519119

約数列:

[1, 5, 13, 17, 25, 65, 85, 137, 221, 289, 325, 425, 685, 1105, 1445, 1781, 2329, 3425, 3757, 5525, 7225, 8905, 11645, 18785, 30277, 39593, 44525, 58225, 93925, 151385, 197965, 514709, 756925, 989825, 2573545, 12867725]

約数ペア:

[(1, 12867725), (5, 2573545), (13, 989825), (17, 756925), (25, 514709), (65, 197965), (85, 151385), (137, 93925), (221, 58225), (289, 44525), (325, 39593), (425, 30277), (685, 18785), (1105, 11645), (1445, 8905), (1781, 7225), (2329, 5525), (3425, 3757)]