31085960

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{5591}}^1$

素因数の和:5741

約数の個数: 32

約数和(自身を含む): 70459200

約数和(自身を除く): 39373240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 5591, 11182, 22364, 27955, 44728, 55910, 111820, 223640, 777149, 1554298, 3108596, 3885745, 6217192, 7771490, 15542980, 31085960]

約数ペア:

[(1, 31085960), (2, 15542980), (4, 7771490), (5, 6217192), (8, 3885745), (10, 3108596), (20, 1554298), (40, 777149), (139, 223640), (278, 111820), (556, 55910), (695, 44728), (1112, 27955), (1390, 22364), (2780, 11182), (5560, 5591)]