13438520

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2417}}^1$

素因数の和:2567

約数の個数: 32

約数和(自身を含む): 30466800

約数和(自身を除く): 17028280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2417, 2780, 4834, 5560, 9668, 12085, 19336, 24170, 48340, 96680, 335963, 671926, 1343852, 1679815, 2687704, 3359630, 6719260, 13438520]

約数ペア:

[(1, 13438520), (2, 6719260), (4, 3359630), (5, 2687704), (8, 1679815), (10, 1343852), (20, 671926), (40, 335963), (139, 96680), (278, 48340), (556, 24170), (695, 19336), (1112, 12085), (1390, 9668), (2417, 5560), (2780, 4834)]