20582680

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{2153}}^1$

素因数の和:2403

約数の個数: 32

約数和(自身を含む): 46526400

約数和(自身を除く): 25943720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1912, 2153, 2390, 4306, 4780, 8612, 9560, 10765, 17224, 21530, 43060, 86120, 514567, 1029134, 2058268, 2572835, 4116536, 5145670, 10291340, 20582680]

約数ペア:

[(1, 20582680), (2, 10291340), (4, 5145670), (5, 4116536), (8, 2572835), (10, 2058268), (20, 1029134), (40, 514567), (239, 86120), (478, 43060), (956, 21530), (1195, 17224), (1912, 10765), (2153, 9560), (2390, 8612), (4306, 4780)]