31092440

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{18077}}^1$

素因数の和:18131

約数の個数: 32

約数和(自身を含む): 71588880

約数和(自身を除く): 40496440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 18077, 36154, 72308, 90385, 144616, 180770, 361540, 723080, 777311, 1554622, 3109244, 3886555, 6218488, 7773110, 15546220, 31092440]

約数ペア:

[(1, 31092440), (2, 15546220), (4, 7773110), (5, 6218488), (8, 3886555), (10, 3109244), (20, 1554622), (40, 777311), (43, 723080), (86, 361540), (172, 180770), (215, 144616), (344, 90385), (430, 72308), (860, 36154), (1720, 18077)]