1648000

素因数分解:

$2^7\times 5^3\times {\mathrm{103}}^1$

素因数の和:132

約数の個数: 64

約数和(自身を含む): 4137120

約数和(自身を除く): 2489120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 103, 125, 128, 160, 200, 206, 250, 320, 400, 412, 500, 515, 640, 800, 824, 1000, 1030, 1600, 1648, 2000, 2060, 2575, 3200, 3296, 4000, 4120, 5150, 6592, 8000, 8240, 10300, 12875, 13184, 16000, 16480, 20600, 25750, 32960, 41200, 51500, 65920, 82400, 103000, 164800, 206000, 329600, 412000, 824000, 1648000]

約数ペア:

[(1, 1648000), (2, 824000), (4, 412000), (5, 329600), (8, 206000), (10, 164800), (16, 103000), (20, 82400), (25, 65920), (32, 51500), (40, 41200), (50, 32960), (64, 25750), (80, 20600), (100, 16480), (103, 16000), (125, 13184), (128, 12875), (160, 10300), (200, 8240), (206, 8000), (250, 6592), (320, 5150), (400, 4120), (412, 4000), (500, 3296), (515, 3200), (640, 2575), (800, 2060), (824, 2000), (1000, 1648), (1030, 1600)]