20678060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79531}}^1$

素因数の和:79553

約数の個数: 24

約数和(自身を含む): 46764816

約数和(自身を除く): 26086756

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 79531, 159062, 318124, 397655, 795310, 1033903, 1590620, 2067806, 4135612, 5169515, 10339030, 20678060]

約数ペア:

[(1, 20678060), (2, 10339030), (4, 5169515), (5, 4135612), (10, 2067806), (13, 1590620), (20, 1033903), (26, 795310), (52, 397655), (65, 318124), (130, 159062), (260, 79531)]