511272560

素因数分解:

$2^4\times 5^1\times {\mathrm{6390907}}^1$

素因数の和:6390920

約数の個数: 20

約数和(自身を含む): 1188708888

約数和(自身を除く): 677436328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 6390907, 12781814, 25563628, 31954535, 51127256, 63909070, 102254512, 127818140, 255636280, 511272560]

約数ペア:

[(1, 511272560), (2, 255636280), (4, 127818140), (5, 102254512), (8, 63909070), (10, 51127256), (16, 31954535), (20, 25563628), (40, 12781814), (80, 6390907)]