39189680

素因数分解:

$2^4\times 5^1\times {\mathrm{489871}}^1$

素因数の和:489884

約数の個数: 20

約数和(自身を含む): 91116192

約数和(自身を除く): 51926512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 489871, 979742, 1959484, 2449355, 3918968, 4898710, 7837936, 9797420, 19594840, 39189680]

約数ペア:

[(1, 39189680), (2, 19594840), (4, 9797420), (5, 7837936), (8, 4898710), (10, 3918968), (16, 2449355), (20, 1959484), (40, 979742), (80, 489871)]