20115100

素因数分解:

$2^2\times 5^2\times {\mathrm{201151}}^1$

素因数の和:201165

約数の個数: 18

約数和(自身を含む): 43649984

約数和(自身を除く): 23534884

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 201151, 402302, 804604, 1005755, 2011510, 4023020, 5028775, 10057550, 20115100]

約数ペア:

[(1, 20115100), (2, 10057550), (4, 5028775), (5, 4023020), (10, 2011510), (20, 1005755), (25, 804604), (50, 402302), (100, 201151)]