39820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1$

素因数の和:201

約数の個数: 24

約数和(自身を含む): 91728

約数和(自身を除く): 51908

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 181, 220, 362, 724, 905, 1810, 1991, 3620, 3982, 7964, 9955, 19910, 39820]

約数ペア:

[(1, 39820), (2, 19910), (4, 9955), (5, 7964), (10, 3982), (11, 3620), (20, 1991), (22, 1810), (44, 905), (55, 724), (110, 362), (181, 220)]