8020640

素因数分解:

$2^5\times 5^1\times {\mathrm{50129}}^1$

素因数の和:50144

約数の個数: 24

約数和(自身を含む): 18949140

約数和(自身を除く): 10928500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 50129, 100258, 200516, 250645, 401032, 501290, 802064, 1002580, 1604128, 2005160, 4010320, 8020640]

約数ペア:

[(1, 8020640), (2, 4010320), (4, 2005160), (5, 1604128), (8, 1002580), (10, 802064), (16, 501290), (20, 401032), (32, 250645), (40, 200516), (80, 100258), (160, 50129)]