20138992025

素因数分解:

$5^2\times {\mathrm{71}}^1\times {\mathrm{11345911}}^1$

素因数の和:11345992

約数の個数: 12

約数和(自身を含む): 25324075584

約数和(自身を除く): 5185083559

約数列:

[1, 5, 25, 71, 355, 1775, 11345911, 56729555, 283647775, 805559681, 4027798405, 20138992025]

約数ペア:

[(1, 20138992025), (5, 4027798405), (25, 805559681), (71, 283647775), (355, 56729555), (1775, 11345911)]