28786000

素因数分解:

$2^4\times 5^3\times {\mathrm{37}}^1\times {\mathrm{389}}^1$

素因数の和:449

約数の個数: 80

約数和(自身を含む): 71669520

約数和(自身を除く): 42883520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 37, 40, 50, 74, 80, 100, 125, 148, 185, 200, 250, 296, 370, 389, 400, 500, 592, 740, 778, 925, 1000, 1480, 1556, 1850, 1945, 2000, 2960, 3112, 3700, 3890, 4625, 6224, 7400, 7780, 9250, 9725, 14393, 14800, 15560, 18500, 19450, 28786, 31120, 37000, 38900, 48625, 57572, 71965, 74000, 77800, 97250, 115144, 143930, 155600, 194500, 230288, 287860, 359825, 389000, 575720, 719650, 778000, 1151440, 1439300, 1799125, 2878600, 3598250, 5757200, 7196500, 14393000, 28786000]

約数ペア:

[(1, 28786000), (2, 14393000), (4, 7196500), (5, 5757200), (8, 3598250), (10, 2878600), (16, 1799125), (20, 1439300), (25, 1151440), (37, 778000), (40, 719650), (50, 575720), (74, 389000), (80, 359825), (100, 287860), (125, 230288), (148, 194500), (185, 155600), (200, 143930), (250, 115144), (296, 97250), (370, 77800), (389, 74000), (400, 71965), (500, 57572), (592, 48625), (740, 38900), (778, 37000), (925, 31120), (1000, 28786), (1480, 19450), (1556, 18500), (1850, 15560), (1945, 14800), (2000, 14393), (2960, 9725), (3112, 9250), (3700, 7780), (3890, 7400), (4625, 6224)]