20203220

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{5581}}^1$

素因数の和:5771

約数の個数: 24

約数和(自身を含む): 42668808

約数和(自身を除く): 22465588

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 3620, 5581, 11162, 22324, 27905, 55810, 111620, 1010161, 2020322, 4040644, 5050805, 10101610, 20203220]

約数ペア:

[(1, 20203220), (2, 10101610), (4, 5050805), (5, 4040644), (10, 2020322), (20, 1010161), (181, 111620), (362, 55810), (724, 27905), (905, 22324), (1810, 11162), (3620, 5581)]