20179445

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^3\times {\mathrm{167}}^1$

素因数の和:222

約数の個数: 32

約数和(自身を含む): 28788480

約数和(自身を除く): 8609035

約数列:

[1, 5, 11, 13, 55, 65, 143, 167, 169, 715, 835, 845, 1837, 1859, 2171, 2197, 9185, 9295, 10855, 10985, 23881, 24167, 28223, 119405, 120835, 141115, 310453, 366899, 1552265, 1834495, 4035889, 20179445]

約数ペア:

[(1, 20179445), (5, 4035889), (11, 1834495), (13, 1552265), (55, 366899), (65, 310453), (143, 141115), (167, 120835), (169, 119405), (715, 28223), (835, 24167), (845, 23881), (1837, 10985), (1859, 10855), (2171, 9295), (2197, 9185)]