20922460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{80471}}^1$

素因数の和:80493

約数の個数: 24

約数和(自身を含む): 47317536

約数和(自身を除く): 26395076

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 80471, 160942, 321884, 402355, 804710, 1046123, 1609420, 2092246, 4184492, 5230615, 10461230, 20922460]

約数ペア:

[(1, 20922460), (2, 10461230), (4, 5230615), (5, 4184492), (10, 2092246), (13, 1609420), (20, 1046123), (26, 804710), (52, 402355), (65, 321884), (130, 160942), (260, 80471)]