80155640

素因数分解:

$2^3\times 5^1\times {\mathrm{1151}}^1\times {\mathrm{1741}}^1$

素因数の和:2903

約数の個数: 32

約数和(自身を含む): 180610560

約数和(自身を除く): 100454920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1151, 1741, 2302, 3482, 4604, 5755, 6964, 8705, 9208, 11510, 13928, 17410, 23020, 34820, 46040, 69640, 2003891, 4007782, 8015564, 10019455, 16031128, 20038910, 40077820, 80155640]

約数ペア:

[(1, 80155640), (2, 40077820), (4, 20038910), (5, 16031128), (8, 10019455), (10, 8015564), (20, 4007782), (40, 2003891), (1151, 69640), (1741, 46040), (2302, 34820), (3482, 23020), (4604, 17410), (5755, 13928), (6964, 11510), (8705, 9208)]