39920440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{142573}}^1$

素因数の和:142591

約数の個数: 32

約数和(自身を含む): 102653280

約数和(自身を除く): 62732840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 142573, 285146, 570292, 712865, 998011, 1140584, 1425730, 1996022, 2851460, 3992044, 4990055, 5702920, 7984088, 9980110, 19960220, 39920440]

約数ペア:

[(1, 39920440), (2, 19960220), (4, 9980110), (5, 7984088), (7, 5702920), (8, 4990055), (10, 3992044), (14, 2851460), (20, 1996022), (28, 1425730), (35, 1140584), (40, 998011), (56, 712865), (70, 570292), (140, 285146), (280, 142573)]