81380255

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{17827}}^1$

素因数の和:17926

約数の個数: 16

約数和(自身を含む): 107823744

約数和(自身を除く): 26443489

約数列:

[1, 5, 11, 55, 83, 415, 913, 4565, 17827, 89135, 196097, 980485, 1479641, 7398205, 16276051, 81380255]

約数ペア:

[(1, 81380255), (5, 16276051), (11, 7398205), (55, 1479641), (83, 980485), (415, 196097), (913, 89135), (4565, 17827)]