19290025

素因数分解:

$5^2\times {\mathrm{521}}^1\times {\mathrm{1481}}^1$

素因数の和:2012

約数の個数: 12

約数和(自身を含む): 23981724

約数和(自身を除く): 4691699

約数列:

[1, 5, 25, 521, 1481, 2605, 7405, 13025, 37025, 771601, 3858005, 19290025]

約数ペア:

[(1, 19290025), (5, 3858005), (25, 771601), (521, 37025), (1481, 13025), (2605, 7405)]