78199040

素因数分解:

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

素因数の和:527

約数の個数: 72

約数和(自身を含む): 188865600

約数和(自身を除く): 110666560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 199, 256, 307, 320, 398, 614, 640, 796, 995, 1228, 1280, 1535, 1592, 1990, 2456, 3070, 3184, 3980, 4912, 6140, 6368, 7960, 9824, 12280, 12736, 15920, 19648, 24560, 25472, 31840, 39296, 49120, 50944, 61093, 63680, 78592, 98240, 122186, 127360, 196480, 244372, 254720, 305465, 392960, 488744, 610930, 977488, 1221860, 1954976, 2443720, 3909952, 4887440, 7819904, 9774880, 15639808, 19549760, 39099520, 78199040]

約数ペア:

[(1, 78199040), (2, 39099520), (4, 19549760), (5, 15639808), (8, 9774880), (10, 7819904), (16, 4887440), (20, 3909952), (32, 2443720), (40, 1954976), (64, 1221860), (80, 977488), (128, 610930), (160, 488744), (199, 392960), (256, 305465), (307, 254720), (320, 244372), (398, 196480), (614, 127360), (640, 122186), (796, 98240), (995, 78592), (1228, 63680), (1280, 61093), (1535, 50944), (1592, 49120), (1990, 39296), (2456, 31840), (3070, 25472), (3184, 24560), (3980, 19648), (4912, 15920), (6140, 12736), (6368, 12280), (7960, 9824)]