78305720

素因数分解:

$2^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{8123}}^1$

素因数の和:8375

約数の個数: 32

約数和(自身を含む): 176940720

約数和(自身を除く): 98635000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 241, 482, 964, 1205, 1928, 2410, 4820, 8123, 9640, 16246, 32492, 40615, 64984, 81230, 162460, 324920, 1957643, 3915286, 7830572, 9788215, 15661144, 19576430, 39152860, 78305720]

約数ペア:

[(1, 78305720), (2, 39152860), (4, 19576430), (5, 15661144), (8, 9788215), (10, 7830572), (20, 3915286), (40, 1957643), (241, 324920), (482, 162460), (964, 81230), (1205, 64984), (1928, 40615), (2410, 32492), (4820, 16246), (8123, 9640)]