312430000

素因数分解:

$2^4\times 5^4\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:384

約数の個数: 100

約数和(自身を含む): 765067600

約数和(自身を除く): 452637600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 157, 199, 200, 250, 314, 398, 400, 500, 625, 628, 785, 796, 995, 1000, 1250, 1256, 1570, 1592, 1990, 2000, 2500, 2512, 3140, 3184, 3925, 3980, 4975, 5000, 6280, 7850, 7960, 9950, 10000, 12560, 15700, 15920, 19625, 19900, 24875, 31243, 31400, 39250, 39800, 49750, 62486, 62800, 78500, 79600, 98125, 99500, 124375, 124972, 156215, 157000, 196250, 199000, 248750, 249944, 312430, 314000, 392500, 398000, 497500, 499888, 624860, 781075, 785000, 995000, 1249720, 1562150, 1570000, 1990000, 2499440, 3124300, 3905375, 6248600, 7810750, 12497200, 15621500, 19526875, 31243000, 39053750, 62486000, 78107500, 156215000, 312430000]

約数ペア:

[(1, 312430000), (2, 156215000), (4, 78107500), (5, 62486000), (8, 39053750), (10, 31243000), (16, 19526875), (20, 15621500), (25, 12497200), (40, 7810750), (50, 6248600), (80, 3905375), (100, 3124300), (125, 2499440), (157, 1990000), (199, 1570000), (200, 1562150), (250, 1249720), (314, 995000), (398, 785000), (400, 781075), (500, 624860), (625, 499888), (628, 497500), (785, 398000), (796, 392500), (995, 314000), (1000, 312430), (1250, 249944), (1256, 248750), (1570, 199000), (1592, 196250), (1990, 157000), (2000, 156215), (2500, 124972), (2512, 124375), (3140, 99500), (3184, 98125), (3925, 79600), (3980, 78500), (4975, 62800), (5000, 62486), (6280, 49750), (7850, 39800), (7960, 39250), (9950, 31400), (10000, 31243), (12560, 24875), (15700, 19900), (15920, 19625)]