12987990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{144311}}^1$

素因数の和:144324

約数の個数: 24

約数和(自身を含む): 33769008

約数和(自身を除く): 20781018

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 144311, 288622, 432933, 721555, 865866, 1298799, 1443110, 2164665, 2597598, 4329330, 6493995, 12987990]

約数ペア:

[(1, 12987990), (2, 6493995), (3, 4329330), (5, 2597598), (6, 2164665), (9, 1443110), (10, 1298799), (15, 865866), (18, 721555), (30, 432933), (45, 288622), (90, 144311)]