123453025

素因数分解:

$5^2\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{443}}^1$

素因数の和:681

約数の個数: 24

約数和(自身を含む): 156579264

約数和(自身を除く): 33126239

約数列:

[1, 5, 25, 71, 157, 355, 443, 785, 1775, 2215, 3925, 11075, 11147, 31453, 55735, 69551, 157265, 278675, 347755, 786325, 1738775, 4938121, 24690605, 123453025]

約数ペア:

[(1, 123453025), (5, 24690605), (25, 4938121), (71, 1738775), (157, 786325), (355, 347755), (443, 278675), (785, 157265), (1775, 69551), (2215, 55735), (3925, 31453), (11075, 11147)]