9879440

素因数分解:

$2^4\times 5^1\times {\mathrm{123493}}^1$

素因数の和:123506

約数の個数: 20

約数和(自身を含む): 22969884

約数和(自身を除く): 13090444

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 123493, 246986, 493972, 617465, 987944, 1234930, 1975888, 2469860, 4939720, 9879440]

約数ペア:

[(1, 9879440), (2, 4939720), (4, 2469860), (5, 1975888), (8, 1234930), (10, 987944), (16, 617465), (20, 493972), (40, 246986), (80, 123493)]