390995200

素因数分解:

$2^8\times 5^2\times {\mathrm{199}}^1\times {\mathrm{307}}^1$

素因数の和:532

約数の個数: 108

約数和(自身を含む): 975805600

約数和(自身を除く): 584810400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 199, 200, 256, 307, 320, 398, 400, 614, 640, 796, 800, 995, 1228, 1280, 1535, 1592, 1600, 1990, 2456, 3070, 3184, 3200, 3980, 4912, 4975, 6140, 6368, 6400, 7675, 7960, 9824, 9950, 12280, 12736, 15350, 15920, 19648, 19900, 24560, 25472, 30700, 31840, 39296, 39800, 49120, 50944, 61093, 61400, 63680, 78592, 79600, 98240, 122186, 122800, 127360, 159200, 196480, 244372, 245600, 254720, 305465, 318400, 392960, 488744, 491200, 610930, 636800, 977488, 982400, 1221860, 1273600, 1527325, 1954976, 1964800, 2443720, 3054650, 3909952, 4887440, 6109300, 7819904, 9774880, 12218600, 15639808, 19549760, 24437200, 39099520, 48874400, 78199040, 97748800, 195497600, 390995200]

約数ペア:

[(1, 390995200), (2, 195497600), (4, 97748800), (5, 78199040), (8, 48874400), (10, 39099520), (16, 24437200), (20, 19549760), (25, 15639808), (32, 12218600), (40, 9774880), (50, 7819904), (64, 6109300), (80, 4887440), (100, 3909952), (128, 3054650), (160, 2443720), (199, 1964800), (200, 1954976), (256, 1527325), (307, 1273600), (320, 1221860), (398, 982400), (400, 977488), (614, 636800), (640, 610930), (796, 491200), (800, 488744), (995, 392960), (1228, 318400), (1280, 305465), (1535, 254720), (1592, 245600), (1600, 244372), (1990, 196480), (2456, 159200), (3070, 127360), (3184, 122800), (3200, 122186), (3980, 98240), (4912, 79600), (4975, 78592), (6140, 63680), (6368, 61400), (6400, 61093), (7675, 50944), (7960, 49120), (9824, 39800), (9950, 39296), (12280, 31840), (12736, 30700), (15350, 25472), (15920, 24560), (19648, 19900)]