251020090

素因数分解:

$2^1\times 5^1\times {\mathrm{1609}}^1\times {\mathrm{15601}}^1$

素因数の和:17217

約数の個数: 16

約数和(自身を含む): 452145960

約数和(自身を除く): 201125870

約数列:

[1, 2, 5, 10, 1609, 3218, 8045, 15601, 16090, 31202, 78005, 156010, 25102009, 50204018, 125510045, 251020090]

約数ペア:

[(1, 251020090), (2, 125510045), (5, 50204018), (10, 25102009), (1609, 156010), (3218, 78005), (8045, 31202), (15601, 16090)]