857620

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{313}}^1$

素因数の和:459

約数の個数: 24

約数和(自身を含む): 1819944

約数和(自身を除く): 962324

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 313, 548, 626, 685, 1252, 1370, 1565, 2740, 3130, 6260, 42881, 85762, 171524, 214405, 428810, 857620]

約数ペア:

[(1, 857620), (2, 428810), (4, 214405), (5, 171524), (10, 85762), (20, 42881), (137, 6260), (274, 3130), (313, 2740), (548, 1565), (626, 1370), (685, 1252)]