31790900

素因数分解:

$2^2\times 5^2\times {\mathrm{257}}^1\times {\mathrm{1237}}^1$

素因数の和:1508

約数の個数: 36

約数和(自身を含む): 69310668

約数和(自身を除く): 37519768

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 257, 514, 1028, 1237, 1285, 2474, 2570, 4948, 5140, 6185, 6425, 12370, 12850, 24740, 25700, 30925, 61850, 123700, 317909, 635818, 1271636, 1589545, 3179090, 6358180, 7947725, 15895450, 31790900]

約数ペア:

[(1, 31790900), (2, 15895450), (4, 7947725), (5, 6358180), (10, 3179090), (20, 1589545), (25, 1271636), (50, 635818), (100, 317909), (257, 123700), (514, 61850), (1028, 30925), (1237, 25700), (1285, 24740), (2474, 12850), (2570, 12370), (4948, 6425), (5140, 6185)]