81625580

素因数分解:

$2^2\times 5^1\times {\mathrm{919}}^1\times {\mathrm{4441}}^1$

素因数の和:5369

約数の個数: 24

約数和(自身を含む): 171638880

約数和(自身を除く): 90013300

約数列:

[1, 2, 4, 5, 10, 20, 919, 1838, 3676, 4441, 4595, 8882, 9190, 17764, 18380, 22205, 44410, 88820, 4081279, 8162558, 16325116, 20406395, 40812790, 81625580]

約数ペア:

[(1, 81625580), (2, 40812790), (4, 20406395), (5, 16325116), (10, 8162558), (20, 4081279), (919, 88820), (1838, 44410), (3676, 22205), (4441, 18380), (4595, 17764), (8882, 9190)]