18026680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{64381}}^1$

素因数の和:64399

約数の個数: 32

約数和(自身を含む): 46355040

約数和(自身を除く): 28328360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 64381, 128762, 257524, 321905, 450667, 515048, 643810, 901334, 1287620, 1802668, 2253335, 2575240, 3605336, 4506670, 9013340, 18026680]

約数ペア:

[(1, 18026680), (2, 9013340), (4, 4506670), (5, 3605336), (7, 2575240), (8, 2253335), (10, 1802668), (14, 1287620), (20, 901334), (28, 643810), (35, 515048), (40, 450667), (56, 321905), (70, 257524), (140, 128762), (280, 64381)]