72687740

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{33343}}^1$

素因数の和:33461

約数の個数: 24

約数和(自身を含む): 154049280

約数和(自身を除く): 81361540

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 33343, 66686, 133372, 166715, 333430, 666860, 3634387, 7268774, 14537548, 18171935, 36343870, 72687740]

約数ペア:

[(1, 72687740), (2, 36343870), (4, 18171935), (5, 14537548), (10, 7268774), (20, 3634387), (109, 666860), (218, 333430), (436, 166715), (545, 133372), (1090, 66686), (2180, 33343)]