18512537980

素因数分解:

$2^2\times 5^1\times {\mathrm{925626899}}^1$

素因数の和:925626908

約数の個数: 12

約数和(自身を含む): 38876329800

約数和(自身を除く): 20363791820

約数列:

[1, 2, 4, 5, 10, 20, 925626899, 1851253798, 3702507596, 4628134495, 9256268990, 18512537980]

約数ペア:

[(1, 18512537980), (2, 9256268990), (4, 4628134495), (5, 3702507596), (10, 1851253798), (20, 925626899)]