1809440

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{263}}^1$

素因数の和:321

約数の個数: 48

約数和(自身を含む): 4390848

約数和(自身を除く): 2581408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 263, 344, 430, 526, 688, 860, 1052, 1315, 1376, 1720, 2104, 2630, 3440, 4208, 5260, 6880, 8416, 10520, 11309, 21040, 22618, 42080, 45236, 56545, 90472, 113090, 180944, 226180, 361888, 452360, 904720, 1809440]

約数ペア:

[(1, 1809440), (2, 904720), (4, 452360), (5, 361888), (8, 226180), (10, 180944), (16, 113090), (20, 90472), (32, 56545), (40, 45236), (43, 42080), (80, 22618), (86, 21040), (160, 11309), (172, 10520), (215, 8416), (263, 6880), (344, 5260), (430, 4208), (526, 3440), (688, 2630), (860, 2104), (1052, 1720), (1315, 1376)]