220185820

素因数分解:

$2^2\times 5^1\times {\mathrm{863}}^1\times {\mathrm{12757}}^1$

素因数の和:13629

約数の個数: 24

約数和(自身を含む): 462962304

約数和(自身を除く): 242776484

約数列:

[1, 2, 4, 5, 10, 20, 863, 1726, 3452, 4315, 8630, 12757, 17260, 25514, 51028, 63785, 127570, 255140, 11009291, 22018582, 44037164, 55046455, 110092910, 220185820]

約数ペア:

[(1, 220185820), (2, 110092910), (4, 55046455), (5, 44037164), (10, 22018582), (20, 11009291), (863, 255140), (1726, 127570), (3452, 63785), (4315, 51028), (8630, 25514), (12757, 17260)]