31334960

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{9109}}^1$

素因数の和:9165

約数の個数: 40

約数和(自身を含む): 74556240

約数和(自身を除く): 43221280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 9109, 18218, 36436, 45545, 72872, 91090, 145744, 182180, 364360, 391687, 728720, 783374, 1566748, 1958435, 3133496, 3916870, 6266992, 7833740, 15667480, 31334960]

約数ペア:

[(1, 31334960), (2, 15667480), (4, 7833740), (5, 6266992), (8, 3916870), (10, 3133496), (16, 1958435), (20, 1566748), (40, 783374), (43, 728720), (80, 391687), (86, 364360), (172, 182180), (215, 145744), (344, 91090), (430, 72872), (688, 45545), (860, 36436), (1720, 18218), (3440, 9109)]