31422680

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{18269}}^1$

素因数の和:18323

約数の個数: 32

約数和(自身を含む): 72349200

約数和(自身を除く): 40926520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 18269, 36538, 73076, 91345, 146152, 182690, 365380, 730760, 785567, 1571134, 3142268, 3927835, 6284536, 7855670, 15711340, 31422680]

約数ペア:

[(1, 31422680), (2, 15711340), (4, 7855670), (5, 6284536), (8, 3927835), (10, 3142268), (20, 1571134), (40, 785567), (43, 730760), (86, 365380), (172, 182690), (215, 146152), (344, 91345), (430, 73076), (860, 36538), (1720, 18269)]