2491000

素因数分解:

$2^3\times 5^3\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:121

約数の個数: 64

約数和(自身を含む): 6065280

約数和(自身を除く): 3574280

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 47, 50, 53, 94, 100, 106, 125, 188, 200, 212, 235, 250, 265, 376, 424, 470, 500, 530, 940, 1000, 1060, 1175, 1325, 1880, 2120, 2350, 2491, 2650, 4700, 4982, 5300, 5875, 6625, 9400, 9964, 10600, 11750, 12455, 13250, 19928, 23500, 24910, 26500, 47000, 49820, 53000, 62275, 99640, 124550, 249100, 311375, 498200, 622750, 1245500, 2491000]

約数ペア:

[(1, 2491000), (2, 1245500), (4, 622750), (5, 498200), (8, 311375), (10, 249100), (20, 124550), (25, 99640), (40, 62275), (47, 53000), (50, 49820), (53, 47000), (94, 26500), (100, 24910), (106, 23500), (125, 19928), (188, 13250), (200, 12455), (212, 11750), (235, 10600), (250, 9964), (265, 9400), (376, 6625), (424, 5875), (470, 5300), (500, 4982), (530, 4700), (940, 2650), (1000, 2491), (1060, 2350), (1175, 2120), (1325, 1880)]