18437660

素因数分解:

$2^2\times 5^1\times {\mathrm{443}}^1\times {\mathrm{2081}}^1$

素因数の和:2533

約数の個数: 24

約数和(自身を含む): 38825136

約数和(自身を除く): 20387476

約数列:

[1, 2, 4, 5, 10, 20, 443, 886, 1772, 2081, 2215, 4162, 4430, 8324, 8860, 10405, 20810, 41620, 921883, 1843766, 3687532, 4609415, 9218830, 18437660]

約数ペア:

[(1, 18437660), (2, 9218830), (4, 4609415), (5, 3687532), (10, 1843766), (20, 921883), (443, 41620), (886, 20810), (1772, 10405), (2081, 8860), (2215, 8324), (4162, 4430)]