49120000

素因数分解:

$2^8\times 5^4\times {\mathrm{307}}^1$

素因数の和:343

約数の個数: 90

約数和(自身を含む): 122920028

約数和(自身を除く): 73800028

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 307, 320, 400, 500, 614, 625, 640, 800, 1000, 1228, 1250, 1280, 1535, 1600, 2000, 2456, 2500, 3070, 3200, 4000, 4912, 5000, 6140, 6400, 7675, 8000, 9824, 10000, 12280, 15350, 16000, 19648, 20000, 24560, 30700, 32000, 38375, 39296, 40000, 49120, 61400, 76750, 78592, 80000, 98240, 122800, 153500, 160000, 191875, 196480, 245600, 307000, 383750, 392960, 491200, 614000, 767500, 982400, 1228000, 1535000, 1964800, 2456000, 3070000, 4912000, 6140000, 9824000, 12280000, 24560000, 49120000]

約数ペア:

[(1, 49120000), (2, 24560000), (4, 12280000), (5, 9824000), (8, 6140000), (10, 4912000), (16, 3070000), (20, 2456000), (25, 1964800), (32, 1535000), (40, 1228000), (50, 982400), (64, 767500), (80, 614000), (100, 491200), (125, 392960), (128, 383750), (160, 307000), (200, 245600), (250, 196480), (256, 191875), (307, 160000), (320, 153500), (400, 122800), (500, 98240), (614, 80000), (625, 78592), (640, 76750), (800, 61400), (1000, 49120), (1228, 40000), (1250, 39296), (1280, 38375), (1535, 32000), (1600, 30700), (2000, 24560), (2456, 20000), (2500, 19648), (3070, 16000), (3200, 15350), (4000, 12280), (4912, 10000), (5000, 9824), (6140, 8000), (6400, 7675)]