868720

素因数分解:

$2^4\times 5^1\times {\mathrm{10859}}^1$

素因数の和:10872

約数の個数: 20

約数和(自身を含む): 2019960

約数和(自身を除く): 1151240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 10859, 21718, 43436, 54295, 86872, 108590, 173744, 217180, 434360, 868720]

約数ペア:

[(1, 868720), (2, 434360), (4, 217180), (5, 173744), (8, 108590), (10, 86872), (16, 54295), (20, 43436), (40, 21718), (80, 10859)]