53871025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5347}}^1$

素因数の和:5401

約数の個数: 24

約数和(自身を含む): 74273024

約数和(自身を除く): 20401999

約数列:

[1, 5, 13, 25, 31, 65, 155, 325, 403, 775, 2015, 5347, 10075, 26735, 69511, 133675, 165757, 347555, 828785, 1737775, 2154841, 4143925, 10774205, 53871025]

約数ペア:

[(1, 53871025), (5, 10774205), (13, 4143925), (25, 2154841), (31, 1737775), (65, 828785), (155, 347555), (325, 165757), (403, 133675), (775, 69511), (2015, 26735), (5347, 10075)]