2131025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:185

約数の個数: 24

約数和(自身を含む): 2916480

約数和(自身を除く): 785455

約数列:

[1, 5, 13, 25, 65, 79, 83, 325, 395, 415, 1027, 1079, 1975, 2075, 5135, 5395, 6557, 25675, 26975, 32785, 85241, 163925, 426205, 2131025]

約数ペア:

[(1, 2131025), (5, 426205), (13, 163925), (25, 85241), (65, 32785), (79, 26975), (83, 25675), (325, 6557), (395, 5395), (415, 5135), (1027, 2075), (1079, 1975)]