80048420

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{10289}}^1$

素因数の和:10687

約数の個数: 24

約数和(自身を含む): 168550200

約数和(自身を除く): 88501780

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 3890, 7780, 10289, 20578, 41156, 51445, 102890, 205780, 4002421, 8004842, 16009684, 20012105, 40024210, 80048420]

約数ペア:

[(1, 80048420), (2, 40024210), (4, 20012105), (5, 16009684), (10, 8004842), (20, 4002421), (389, 205780), (778, 102890), (1556, 51445), (1945, 41156), (3890, 20578), (7780, 10289)]