85210520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{463}}^1$

素因数の和:624

約数の個数: 64

約数和(自身を含む): 198443520

約数和(自身を除く): 113233000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 107, 172, 214, 215, 344, 428, 430, 463, 535, 856, 860, 926, 1070, 1720, 1852, 2140, 2315, 3704, 4280, 4601, 4630, 9202, 9260, 18404, 18520, 19909, 23005, 36808, 39818, 46010, 49541, 79636, 92020, 99082, 99545, 159272, 184040, 198164, 199090, 247705, 396328, 398180, 495410, 796360, 990820, 1981640, 2130263, 4260526, 8521052, 10651315, 17042104, 21302630, 42605260, 85210520]

約数ペア:

[(1, 85210520), (2, 42605260), (4, 21302630), (5, 17042104), (8, 10651315), (10, 8521052), (20, 4260526), (40, 2130263), (43, 1981640), (86, 990820), (107, 796360), (172, 495410), (214, 398180), (215, 396328), (344, 247705), (428, 199090), (430, 198164), (463, 184040), (535, 159272), (856, 99545), (860, 99082), (926, 92020), (1070, 79636), (1720, 49541), (1852, 46010), (2140, 39818), (2315, 36808), (3704, 23005), (4280, 19909), (4601, 18520), (4630, 18404), (9202, 9260)]