489753025

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{521}}^1\times {\mathrm{1979}}^1$

素因数の和:2529

約数の個数: 24

約数和(自身を含む): 640807200

約数和(自身を除く): 151054175

約数列:

[1, 5, 19, 25, 95, 475, 521, 1979, 2605, 9895, 9899, 13025, 37601, 49475, 49495, 188005, 247475, 940025, 1031059, 5155295, 19590121, 25776475, 97950605, 489753025]

約数ペア:

[(1, 489753025), (5, 97950605), (19, 25776475), (25, 19590121), (95, 5155295), (475, 1031059), (521, 940025), (1979, 247475), (2605, 188005), (9895, 49495), (9899, 49475), (13025, 37601)]