251138000

素因数分解:

$2^4\times 5^3\times {\mathrm{199}}^1\times {\mathrm{631}}^1$

素因数の和:853

約数の個数: 80

約数和(自身を含む): 611270400

約数和(自身を除く): 360132400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 199, 200, 250, 398, 400, 500, 631, 796, 995, 1000, 1262, 1592, 1990, 2000, 2524, 3155, 3184, 3980, 4975, 5048, 6310, 7960, 9950, 10096, 12620, 15775, 15920, 19900, 24875, 25240, 31550, 39800, 49750, 50480, 63100, 78875, 79600, 99500, 125569, 126200, 157750, 199000, 251138, 252400, 315500, 398000, 502276, 627845, 631000, 1004552, 1255690, 1262000, 2009104, 2511380, 3139225, 5022760, 6278450, 10045520, 12556900, 15696125, 25113800, 31392250, 50227600, 62784500, 125569000, 251138000]

約数ペア:

[(1, 251138000), (2, 125569000), (4, 62784500), (5, 50227600), (8, 31392250), (10, 25113800), (16, 15696125), (20, 12556900), (25, 10045520), (40, 6278450), (50, 5022760), (80, 3139225), (100, 2511380), (125, 2009104), (199, 1262000), (200, 1255690), (250, 1004552), (398, 631000), (400, 627845), (500, 502276), (631, 398000), (796, 315500), (995, 252400), (1000, 251138), (1262, 199000), (1592, 157750), (1990, 126200), (2000, 125569), (2524, 99500), (3155, 79600), (3184, 78875), (3980, 63100), (4975, 50480), (5048, 49750), (6310, 39800), (7960, 31550), (9950, 25240), (10096, 24875), (12620, 19900), (15775, 15920)]