20504360

素因数分解:

$2^3\times 5^1\times {\mathrm{512609}}^1$

素因数の和:512620

約数の個数: 16

約数和(自身を含む): 46134900

約数和(自身を除く): 25630540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 512609, 1025218, 2050436, 2563045, 4100872, 5126090, 10252180, 20504360]

約数ペア:

[(1, 20504360), (2, 10252180), (4, 5126090), (5, 4100872), (8, 2563045), (10, 2050436), (20, 1025218), (40, 512609)]