39780880

素因数分解:

$2^4\times 5^1\times {\mathrm{497261}}^1$

素因数の和:497274

約数の個数: 20

約数和(自身を含む): 92490732

約数和(自身を除く): 52709852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 497261, 994522, 1989044, 2486305, 3978088, 4972610, 7956176, 9945220, 19890440, 39780880]

約数ペア:

[(1, 39780880), (2, 19890440), (4, 9945220), (5, 7956176), (8, 4972610), (10, 3978088), (16, 2486305), (20, 1989044), (40, 994522), (80, 497261)]