1390635160

素因数分解:

$2^3\times 5^1\times {\mathrm{34765879}}^1$

素因数の和:34765890

約数の個数: 16

約数和(自身を含む): 3128929200

約数和(自身を除く): 1738294040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 34765879, 69531758, 139063516, 173829395, 278127032, 347658790, 695317580, 1390635160]

約数ペア:

[(1, 1390635160), (2, 695317580), (4, 347658790), (5, 278127032), (8, 173829395), (10, 139063516), (20, 69531758), (40, 34765879)]