991480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{3541}}^1$

素因数の和:3559

約数の個数: 32

約数和(自身を含む): 2550240

約数和(自身を除く): 1558760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 3541, 7082, 14164, 17705, 24787, 28328, 35410, 49574, 70820, 99148, 123935, 141640, 198296, 247870, 495740, 991480]

約数ペア:

[(1, 991480), (2, 495740), (4, 247870), (5, 198296), (7, 141640), (8, 123935), (10, 99148), (14, 70820), (20, 49574), (28, 35410), (35, 28328), (40, 24787), (56, 17705), (70, 14164), (140, 7082), (280, 3541)]