10728500

素因数分解:

$2^2\times 5^3\times {\mathrm{43}}^1\times {\mathrm{499}}^1$

素因数の和:561

約数の個数: 48

約数和(自身を含む): 24024000

約数和(自身を除く): 13295500

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 125, 172, 215, 250, 430, 499, 500, 860, 998, 1075, 1996, 2150, 2495, 4300, 4990, 5375, 9980, 10750, 12475, 21457, 21500, 24950, 42914, 49900, 62375, 85828, 107285, 124750, 214570, 249500, 429140, 536425, 1072850, 2145700, 2682125, 5364250, 10728500]

約数ペア:

[(1, 10728500), (2, 5364250), (4, 2682125), (5, 2145700), (10, 1072850), (20, 536425), (25, 429140), (43, 249500), (50, 214570), (86, 124750), (100, 107285), (125, 85828), (172, 62375), (215, 49900), (250, 42914), (430, 24950), (499, 21500), (500, 21457), (860, 12475), (998, 10750), (1075, 9980), (1996, 5375), (2150, 4990), (2495, 4300)]