1621112560

素因数分解:

$2^4\times 5^1\times {\mathrm{20263907}}^1$

素因数の和:20263920

約数の個数: 20

約数和(自身を含む): 3769086888

約数和(自身を除く): 2147974328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 20263907, 40527814, 81055628, 101319535, 162111256, 202639070, 324222512, 405278140, 810556280, 1621112560]

約数ペア:

[(1, 1621112560), (2, 810556280), (4, 405278140), (5, 324222512), (8, 202639070), (10, 162111256), (16, 101319535), (20, 81055628), (40, 40527814), (80, 20263907)]