904720

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{263}}^1$

素因数の和:319

約数の個数: 40

約数和(自身を含む): 2160576

約数和(自身を除く): 1255856

約数列:

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

約数ペア:

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