20836840

素因数分解:

$2^3\times 5^1\times {\mathrm{520921}}^1$

素因数の和:520932

約数の個数: 16

約数和(自身を含む): 46882980

約数和(自身を除く): 26046140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 520921, 1041842, 2083684, 2604605, 4167368, 5209210, 10418420, 20836840]

約数ペア:

[(1, 20836840), (2, 10418420), (4, 5209210), (5, 4167368), (8, 2604605), (10, 2083684), (20, 1041842), (40, 520921)]