86821225

素因数分解:

$5^2\times {\mathrm{109}}^1\times {\mathrm{151}}^1\times {\mathrm{211}}^1$

素因数の和:481

約数の個数: 24

約数和(自身を含む): 109883840

約数和(自身を除く): 23062615

約数列:

[1, 5, 25, 109, 151, 211, 545, 755, 1055, 2725, 3775, 5275, 16459, 22999, 31861, 82295, 114995, 159305, 411475, 574975, 796525, 3472849, 17364245, 86821225]

約数ペア:

[(1, 86821225), (5, 17364245), (25, 3472849), (109, 796525), (151, 574975), (211, 411475), (545, 159305), (755, 114995), (1055, 82295), (2725, 31861), (3775, 22999), (5275, 16459)]