28231000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:174

約数の個数: 128

約数和(自身を含む): 78249600

約数和(自身を除く): 50018600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 37, 40, 50, 56, 70, 74, 100, 109, 125, 140, 148, 175, 185, 200, 218, 250, 259, 280, 296, 350, 370, 436, 500, 518, 545, 700, 740, 763, 872, 875, 925, 1000, 1036, 1090, 1295, 1400, 1480, 1526, 1750, 1850, 2072, 2180, 2590, 2725, 3052, 3500, 3700, 3815, 4033, 4360, 4625, 5180, 5450, 6104, 6475, 7000, 7400, 7630, 8066, 9250, 10360, 10900, 12950, 13625, 15260, 16132, 18500, 19075, 20165, 21800, 25900, 27250, 28231, 30520, 32264, 32375, 37000, 38150, 40330, 51800, 54500, 56462, 64750, 76300, 80660, 95375, 100825, 109000, 112924, 129500, 141155, 152600, 161320, 190750, 201650, 225848, 259000, 282310, 381500, 403300, 504125, 564620, 705775, 763000, 806600, 1008250, 1129240, 1411550, 2016500, 2823100, 3528875, 4033000, 5646200, 7057750, 14115500, 28231000]

約数ペア:

[(1, 28231000), (2, 14115500), (4, 7057750), (5, 5646200), (7, 4033000), (8, 3528875), (10, 2823100), (14, 2016500), (20, 1411550), (25, 1129240), (28, 1008250), (35, 806600), (37, 763000), (40, 705775), (50, 564620), (56, 504125), (70, 403300), (74, 381500), (100, 282310), (109, 259000), (125, 225848), (140, 201650), (148, 190750), (175, 161320), (185, 152600), (200, 141155), (218, 129500), (250, 112924), (259, 109000), (280, 100825), (296, 95375), (350, 80660), (370, 76300), (436, 64750), (500, 56462), (518, 54500), (545, 51800), (700, 40330), (740, 38150), (763, 37000), (872, 32375), (875, 32264), (925, 30520), (1000, 28231), (1036, 27250), (1090, 25900), (1295, 21800), (1400, 20165), (1480, 19075), (1526, 18500), (1750, 16132), (1850, 15260), (2072, 13625), (2180, 12950), (2590, 10900), (2725, 10360), (3052, 9250), (3500, 8066), (3700, 7630), (3815, 7400), (4033, 7000), (4360, 6475), (4625, 6104), (5180, 5450)]