2780457080

素因数分解:

$2^3\times 5^1\times {\mathrm{69511427}}^1$

素因数の和:69511438

約数の個数: 16

約数和(自身を含む): 6256028520

約数和(自身を除く): 3475571440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 69511427, 139022854, 278045708, 347557135, 556091416, 695114270, 1390228540, 2780457080]

約数ペア:

[(1, 2780457080), (2, 1390228540), (4, 695114270), (5, 556091416), (8, 347557135), (10, 278045708), (20, 139022854), (40, 69511427)]