15279640

素因数分解:

$2^3\times 5^1\times {\mathrm{381991}}^1$

素因数の和:382002

約数の個数: 16

約数和(自身を含む): 34379280

約数和(自身を除く): 19099640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 381991, 763982, 1527964, 1909955, 3055928, 3819910, 7639820, 15279640]

約数ペア:

[(1, 15279640), (2, 7639820), (4, 3819910), (5, 3055928), (8, 1909955), (10, 1527964), (20, 763982), (40, 381991)]