521080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1861}}^1$

素因数の和:1879

約数の個数: 32

約数和(自身を含む): 1340640

約数和(自身を除く): 819560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1861, 3722, 7444, 9305, 13027, 14888, 18610, 26054, 37220, 52108, 65135, 74440, 104216, 130270, 260540, 521080]

約数ペア:

[(1, 521080), (2, 260540), (4, 130270), (5, 104216), (7, 74440), (8, 65135), (10, 52108), (14, 37220), (20, 26054), (28, 18610), (35, 14888), (40, 13027), (56, 9305), (70, 7444), (140, 3722), (280, 1861)]