18786800

素因数分解:

$2^4\times 5^2\times {\mathrm{67}}^1\times {\mathrm{701}}^1$

素因数の和:786

約数の個数: 60

約数和(自身を含む): 45874296

約数和(自身を除く): 27087496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 67, 80, 100, 134, 200, 268, 335, 400, 536, 670, 701, 1072, 1340, 1402, 1675, 2680, 2804, 3350, 3505, 5360, 5608, 6700, 7010, 11216, 13400, 14020, 17525, 26800, 28040, 35050, 46967, 56080, 70100, 93934, 140200, 187868, 234835, 280400, 375736, 469670, 751472, 939340, 1174175, 1878680, 2348350, 3757360, 4696700, 9393400, 18786800]

約数ペア:

[(1, 18786800), (2, 9393400), (4, 4696700), (5, 3757360), (8, 2348350), (10, 1878680), (16, 1174175), (20, 939340), (25, 751472), (40, 469670), (50, 375736), (67, 280400), (80, 234835), (100, 187868), (134, 140200), (200, 93934), (268, 70100), (335, 56080), (400, 46967), (536, 35050), (670, 28040), (701, 26800), (1072, 17525), (1340, 14020), (1402, 13400), (1675, 11216), (2680, 7010), (2804, 6700), (3350, 5608), (3505, 5360)]