18502720

素因数分解:

$2^6\times 5^1\times {\mathrm{67}}^1\times {\mathrm{863}}^1$

素因数の和:947

約数の個数: 56

約数和(自身を含む): 44769024

約数和(自身を除く): 26266304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 67, 80, 134, 160, 268, 320, 335, 536, 670, 863, 1072, 1340, 1726, 2144, 2680, 3452, 4288, 4315, 5360, 6904, 8630, 10720, 13808, 17260, 21440, 27616, 34520, 55232, 57821, 69040, 115642, 138080, 231284, 276160, 289105, 462568, 578210, 925136, 1156420, 1850272, 2312840, 3700544, 4625680, 9251360, 18502720]

約数ペア:

[(1, 18502720), (2, 9251360), (4, 4625680), (5, 3700544), (8, 2312840), (10, 1850272), (16, 1156420), (20, 925136), (32, 578210), (40, 462568), (64, 289105), (67, 276160), (80, 231284), (134, 138080), (160, 115642), (268, 69040), (320, 57821), (335, 55232), (536, 34520), (670, 27616), (863, 21440), (1072, 17260), (1340, 13808), (1726, 10720), (2144, 8630), (2680, 6904), (3452, 5360), (4288, 4315)]