26829980

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{16981}}^1$

素因数の和:17069

約数の個数: 24

約数和(自身を含む): 57059520

約数和(自身を除く): 30229540

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 16981, 33962, 67924, 84905, 169810, 339620, 1341499, 2682998, 5365996, 6707495, 13414990, 26829980]

約数ペア:

[(1, 26829980), (2, 13414990), (4, 6707495), (5, 5365996), (10, 2682998), (20, 1341499), (79, 339620), (158, 169810), (316, 84905), (395, 67924), (790, 33962), (1580, 16981)]