78345025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{661}}^1$

素因数の和:1113

約数の個数: 24

約数和(自身を含む): 106386048

約数和(自身を除く): 28041023

約数列:

[1, 5, 11, 25, 55, 275, 431, 661, 2155, 3305, 4741, 7271, 10775, 16525, 23705, 36355, 118525, 181775, 284891, 1424455, 3133801, 7122275, 15669005, 78345025]

約数ペア:

[(1, 78345025), (5, 15669005), (11, 7122275), (25, 3133801), (55, 1424455), (275, 284891), (431, 181775), (661, 118525), (2155, 36355), (3305, 23705), (4741, 16525), (7271, 10775)]