1964800

素因数分解:

$2^8\times 5^2\times {\mathrm{307}}^1$

素因数の和:333

約数の個数: 54

約数和(自身を含む): 4879028

約数和(自身を除く): 2914228

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 307, 320, 400, 614, 640, 800, 1228, 1280, 1535, 1600, 2456, 3070, 3200, 4912, 6140, 6400, 7675, 9824, 12280, 15350, 19648, 24560, 30700, 39296, 49120, 61400, 78592, 98240, 122800, 196480, 245600, 392960, 491200, 982400, 1964800]

約数ペア:

[(1, 1964800), (2, 982400), (4, 491200), (5, 392960), (8, 245600), (10, 196480), (16, 122800), (20, 98240), (25, 78592), (32, 61400), (40, 49120), (50, 39296), (64, 30700), (80, 24560), (100, 19648), (128, 15350), (160, 12280), (200, 9824), (256, 7675), (307, 6400), (320, 6140), (400, 4912), (614, 3200), (640, 3070), (800, 2456), (1228, 1600), (1280, 1535)]