91457540

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{41953}}^1$

素因数の和:42071

約数の個数: 24

約数和(自身を含む): 193827480

約数和(自身を除く): 102369940

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 41953, 83906, 167812, 209765, 419530, 839060, 4572877, 9145754, 18291508, 22864385, 45728770, 91457540]

約数ペア:

[(1, 91457540), (2, 45728770), (4, 22864385), (5, 18291508), (10, 9145754), (20, 4572877), (109, 839060), (218, 419530), (436, 209765), (545, 167812), (1090, 83906), (2180, 41953)]