4041640

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1279}}^1$

素因数の和:1369

約数の個数: 32

約数和(自身を含む): 9216000

約数和(自身を除く): 5174360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1279, 1580, 2558, 3160, 5116, 6395, 10232, 12790, 25580, 51160, 101041, 202082, 404164, 505205, 808328, 1010410, 2020820, 4041640]

約数ペア:

[(1, 4041640), (2, 2020820), (4, 1010410), (5, 808328), (8, 505205), (10, 404164), (20, 202082), (40, 101041), (79, 51160), (158, 25580), (316, 12790), (395, 10232), (632, 6395), (790, 5116), (1279, 3160), (1580, 2558)]