51213125

素因数分解:

$5^4\times {\mathrm{67}}^1\times {\mathrm{1223}}^1$

素因数の和:1310

約数の個数: 20

約数和(自身を含む): 65004192

約数和(自身を除く): 13791067

約数列:

[1, 5, 25, 67, 125, 335, 625, 1223, 1675, 6115, 8375, 30575, 41875, 81941, 152875, 409705, 764375, 2048525, 10242625, 51213125]

約数ペア:

[(1, 51213125), (5, 10242625), (25, 2048525), (67, 764375), (125, 409705), (335, 152875), (625, 81941), (1223, 41875), (1675, 30575), (6115, 8375)]