8121640

素因数分解:

$2^3\times 5^1\times {\mathrm{277}}^1\times {\mathrm{733}}^1$

素因数の和:1021

約数の個数: 32

約数和(自身を含む): 18364680

約数和(自身を除く): 10243040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 277, 554, 733, 1108, 1385, 1466, 2216, 2770, 2932, 3665, 5540, 5864, 7330, 11080, 14660, 29320, 203041, 406082, 812164, 1015205, 1624328, 2030410, 4060820, 8121640]

約数ペア:

[(1, 8121640), (2, 4060820), (4, 2030410), (5, 1624328), (8, 1015205), (10, 812164), (20, 406082), (40, 203041), (277, 29320), (554, 14660), (733, 11080), (1108, 7330), (1385, 5864), (1466, 5540), (2216, 3665), (2770, 2932)]