20203720

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{17417}}^1$

素因数の和:17457

約数の個数: 32

約数和(自身を含む): 47028600

約数和(自身を除く): 26824880

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 17417, 34834, 69668, 87085, 139336, 174170, 348340, 505093, 696680, 1010186, 2020372, 2525465, 4040744, 5050930, 10101860, 20203720]

約数ペア:

[(1, 20203720), (2, 10101860), (4, 5050930), (5, 4040744), (8, 2525465), (10, 2020372), (20, 1010186), (29, 696680), (40, 505093), (58, 348340), (116, 174170), (145, 139336), (232, 87085), (290, 69668), (580, 34834), (1160, 17417)]