990680

素因数分解:

$2^3\times 5^1\times {\mathrm{24767}}^1$

素因数の和:24778

約数の個数: 16

約数和(自身を含む): 2229120

約数和(自身を除く): 1238440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 24767, 49534, 99068, 123835, 198136, 247670, 495340, 990680]

約数ペア:

[(1, 990680), (2, 495340), (4, 247670), (5, 198136), (8, 123835), (10, 99068), (20, 49534), (40, 24767)]