12620000

素因数分解:

$2^5\times 5^4\times {\mathrm{631}}^1$

素因数の和:661

約数の個数: 60

約数和(自身を含む): 31096296

約数和(自身を除く): 18476296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 625, 631, 800, 1000, 1250, 1262, 2000, 2500, 2524, 3155, 4000, 5000, 5048, 6310, 10000, 10096, 12620, 15775, 20000, 20192, 25240, 31550, 50480, 63100, 78875, 100960, 126200, 157750, 252400, 315500, 394375, 504800, 631000, 788750, 1262000, 1577500, 2524000, 3155000, 6310000, 12620000]

約数ペア:

[(1, 12620000), (2, 6310000), (4, 3155000), (5, 2524000), (8, 1577500), (10, 1262000), (16, 788750), (20, 631000), (25, 504800), (32, 394375), (40, 315500), (50, 252400), (80, 157750), (100, 126200), (125, 100960), (160, 78875), (200, 63100), (250, 50480), (400, 31550), (500, 25240), (625, 20192), (631, 20000), (800, 15775), (1000, 12620), (1250, 10096), (1262, 10000), (2000, 6310), (2500, 5048), (2524, 5000), (3155, 4000)]