20749600

素因数分解:

$2^5\times 5^2\times {\mathrm{37}}^1\times {\mathrm{701}}^1$

素因数の和:758

約数の個数: 72

約数和(自身を含む): 52098228

約数和(自身を除く): 31348628

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 37, 40, 50, 74, 80, 100, 148, 160, 185, 200, 296, 370, 400, 592, 701, 740, 800, 925, 1184, 1402, 1480, 1850, 2804, 2960, 3505, 3700, 5608, 5920, 7010, 7400, 11216, 14020, 14800, 17525, 22432, 25937, 28040, 29600, 35050, 51874, 56080, 70100, 103748, 112160, 129685, 140200, 207496, 259370, 280400, 414992, 518740, 560800, 648425, 829984, 1037480, 1296850, 2074960, 2593700, 4149920, 5187400, 10374800, 20749600]

約数ペア:

[(1, 20749600), (2, 10374800), (4, 5187400), (5, 4149920), (8, 2593700), (10, 2074960), (16, 1296850), (20, 1037480), (25, 829984), (32, 648425), (37, 560800), (40, 518740), (50, 414992), (74, 280400), (80, 259370), (100, 207496), (148, 140200), (160, 129685), (185, 112160), (200, 103748), (296, 70100), (370, 56080), (400, 51874), (592, 35050), (701, 29600), (740, 28040), (800, 25937), (925, 22432), (1184, 17525), (1402, 14800), (1480, 14020), (1850, 11216), (2804, 7400), (2960, 7010), (3505, 5920), (3700, 5608)]