1689820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{7681}}^1$

素因数の和:7701

約数の個数: 24

約数和(自身を含む): 3871728

約数和(自身を除く): 2181908

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 7681, 15362, 30724, 38405, 76810, 84491, 153620, 168982, 337964, 422455, 844910, 1689820]

約数ペア:

[(1, 1689820), (2, 844910), (4, 422455), (5, 337964), (10, 168982), (11, 153620), (20, 84491), (22, 76810), (44, 38405), (55, 30724), (110, 15362), (220, 7681)]