20269505

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{521}}^1$

素因数の和:808

約数の個数: 16

約数和(自身を含む): 25256448

約数和(自身を除く): 4986943

約数列:

[1, 5, 31, 155, 251, 521, 1255, 2605, 7781, 16151, 38905, 80755, 130771, 653855, 4053901, 20269505]

約数ペア:

[(1, 20269505), (5, 4053901), (31, 653855), (155, 130771), (251, 80755), (521, 38905), (1255, 16151), (2605, 7781)]