398060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1531}}^1$

素因数の和:1553

約数の個数: 24

約数和(自身を含む): 900816

約数和(自身を除く): 502756

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1531, 3062, 6124, 7655, 15310, 19903, 30620, 39806, 79612, 99515, 199030, 398060]

約数ペア:

[(1, 398060), (2, 199030), (4, 99515), (5, 79612), (10, 39806), (13, 30620), (20, 19903), (26, 15310), (52, 7655), (65, 6124), (130, 3062), (260, 1531)]