65674654960

素因数分解:

$2^4\times 5^1\times {\mathrm{641}}^1\times {\mathrm{1280707}}^1$

素因数の和:1281361

約数の個数: 40

約数和(自身を含む): 152931903696

約数和(自身を除く): 87257248736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 641, 1282, 2564, 3205, 5128, 6410, 10256, 12820, 25640, 51280, 1280707, 2561414, 5122828, 6403535, 10245656, 12807070, 20491312, 25614140, 51228280, 102456560, 820933187, 1641866374, 3283732748, 4104665935, 6567465496, 8209331870, 13134930992, 16418663740, 32837327480, 65674654960]

約数ペア:

[(1, 65674654960), (2, 32837327480), (4, 16418663740), (5, 13134930992), (8, 8209331870), (10, 6567465496), (16, 4104665935), (20, 3283732748), (40, 1641866374), (80, 820933187), (641, 102456560), (1282, 51228280), (2564, 25614140), (3205, 20491312), (5128, 12807070), (6410, 10245656), (10256, 6403535), (12820, 5122828), (25640, 2561414), (51280, 1280707)]