201027620

素因数分解:

$2^2\times 5^1\times {\mathrm{1801}}^1\times {\mathrm{5581}}^1$

素因数の和:7391

約数の個数: 24

約数和(自身を含む): 422468088

約数和(自身を除く): 221440468

約数列:

[1, 2, 4, 5, 10, 20, 1801, 3602, 5581, 7204, 9005, 11162, 18010, 22324, 27905, 36020, 55810, 111620, 10051381, 20102762, 40205524, 50256905, 100513810, 201027620]

約数ペア:

[(1, 201027620), (2, 100513810), (4, 50256905), (5, 40205524), (10, 20102762), (20, 10051381), (1801, 111620), (3602, 55810), (5581, 36020), (7204, 27905), (9005, 22324), (11162, 18010)]