64884440

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{34513}}^1$

素因数の和:34571

約数の個数: 32

約数和(自身を含む): 149100480

約数和(自身を除く): 84216040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 34513, 69026, 138052, 172565, 276104, 345130, 690260, 1380520, 1622111, 3244222, 6488444, 8110555, 12976888, 16221110, 32442220, 64884440]

約数ペア:

[(1, 64884440), (2, 32442220), (4, 16221110), (5, 12976888), (8, 8110555), (10, 6488444), (20, 3244222), (40, 1622111), (47, 1380520), (94, 690260), (188, 345130), (235, 276104), (376, 172565), (470, 138052), (940, 69026), (1880, 34513)]