31396880

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{9127}}^1$

素因数の和:9183

約数の個数: 40

約数和(自身を含む): 74703552

約数和(自身を除く): 43306672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 9127, 18254, 36508, 45635, 73016, 91270, 146032, 182540, 365080, 392461, 730160, 784922, 1569844, 1962305, 3139688, 3924610, 6279376, 7849220, 15698440, 31396880]

約数ペア:

[(1, 31396880), (2, 15698440), (4, 7849220), (5, 6279376), (8, 3924610), (10, 3139688), (16, 1962305), (20, 1569844), (40, 784922), (43, 730160), (80, 392461), (86, 365080), (172, 182540), (215, 146032), (344, 91270), (430, 73016), (688, 45635), (860, 36508), (1720, 18254), (3440, 9127)]