40640440

素因数分解:

$2^3\times 5^1\times {\mathrm{1016011}}^1$

素因数の和:1016022

約数の個数: 16

約数和(自身を含む): 91441080

約数和(自身を除く): 50800640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1016011, 2032022, 4064044, 5080055, 8128088, 10160110, 20320220, 40640440]

約数ペア:

[(1, 40640440), (2, 20320220), (4, 10160110), (5, 8128088), (8, 5080055), (10, 4064044), (20, 2032022), (40, 1016011)]