20687535256

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{1823}}^1\times {\mathrm{19979}}^1$

素因数の和:21879

約数の個数: 32

約数和(自身を含む): 39359001600

約数和(自身を除く): 18671466344

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 1823, 3646, 7292, 14584, 19979, 39958, 79916, 129433, 159832, 258866, 517732, 1035464, 1418509, 2837018, 5674036, 11348072, 36421717, 72843434, 145686868, 291373736, 2585941907, 5171883814, 10343767628, 20687535256]

約数ペア:

[(1, 20687535256), (2, 10343767628), (4, 5171883814), (8, 2585941907), (71, 291373736), (142, 145686868), (284, 72843434), (568, 36421717), (1823, 11348072), (3646, 5674036), (7292, 2837018), (14584, 1418509), (19979, 1035464), (39958, 517732), (79916, 258866), (129433, 159832)]