31217240

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{7577}}^1$

素因数の和:7691

約数の個数: 32

約数和(自身を含む): 70930080

約数和(自身を除く): 39712840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 7577, 15154, 30308, 37885, 60616, 75770, 151540, 303080, 780431, 1560862, 3121724, 3902155, 6243448, 7804310, 15608620, 31217240]

約数ペア:

[(1, 31217240), (2, 15608620), (4, 7804310), (5, 6243448), (8, 3902155), (10, 3121724), (20, 1560862), (40, 780431), (103, 303080), (206, 151540), (412, 75770), (515, 60616), (824, 37885), (1030, 30308), (2060, 15154), (4120, 7577)]