39630440

素因数分解:

$2^3\times 5^1\times {\mathrm{990761}}^1$

素因数の和:990772

約数の個数: 16

約数和(自身を含む): 89168580

約数和(自身を除く): 49538140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 990761, 1981522, 3963044, 4953805, 7926088, 9907610, 19815220, 39630440]

約数ペア:

[(1, 39630440), (2, 19815220), (4, 9907610), (5, 7926088), (8, 4953805), (10, 3963044), (20, 1981522), (40, 990761)]