53985640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{31387}}^1$

素因数の和:31441

約数の個数: 32

約数和(自身を含む): 124296480

約数和(自身を除く): 70310840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 31387, 62774, 125548, 156935, 251096, 313870, 627740, 1255480, 1349641, 2699282, 5398564, 6748205, 10797128, 13496410, 26992820, 53985640]

約数ペア:

[(1, 53985640), (2, 26992820), (4, 13496410), (5, 10797128), (8, 6748205), (10, 5398564), (20, 2699282), (40, 1349641), (43, 1255480), (86, 627740), (172, 313870), (215, 251096), (344, 156935), (430, 125548), (860, 62774), (1720, 31387)]