81132640

素因数分解:

$2^5\times 5^1\times {\mathrm{507079}}^1$

素因数の和:507094

約数の個数: 24

約数和(自身を含む): 191676240

約数和(自身を除く): 110543600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 507079, 1014158, 2028316, 2535395, 4056632, 5070790, 8113264, 10141580, 16226528, 20283160, 40566320, 81132640]

約数ペア:

[(1, 81132640), (2, 40566320), (4, 20283160), (5, 16226528), (8, 10141580), (10, 8113264), (16, 5070790), (20, 4056632), (32, 2535395), (40, 2028316), (80, 1014158), (160, 507079)]