81217025

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{1031}}^1$

素因数の和:1201

約数の個数: 24

約数和(自身を含む): 105957504

約数和(自身を除く): 24740479

約数列:

[1, 5, 23, 25, 115, 137, 575, 685, 1031, 3151, 3425, 5155, 15755, 23713, 25775, 78775, 118565, 141247, 592825, 706235, 3248681, 3531175, 16243405, 81217025]

約数ペア:

[(1, 81217025), (5, 16243405), (23, 3531175), (25, 3248681), (115, 706235), (137, 592825), (575, 141247), (685, 118565), (1031, 78775), (3151, 25775), (3425, 23713), (5155, 15755)]