12540680

素因数分解:

$2^3\times 5^1\times {\mathrm{313517}}^1$

素因数の和:313528

約数の個数: 16

約数和(自身を含む): 28216620

約数和(自身を除く): 15675940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313517, 627034, 1254068, 1567585, 2508136, 3135170, 6270340, 12540680]

約数ペア:

[(1, 12540680), (2, 6270340), (4, 3135170), (5, 2508136), (8, 1567585), (10, 1254068), (20, 627034), (40, 313517)]