42778905

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{509}}^1$

素因数の和:961

約数の個数: 32

約数和(自身を含む): 74027520

約数和(自身を除く): 31248615

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 431, 509, 1293, 1527, 2155, 2545, 5603, 6465, 6617, 7635, 16809, 19851, 28015, 33085, 84045, 99255, 219379, 658137, 1096895, 2851927, 3290685, 8555781, 14259635, 42778905]

約数ペア:

[(1, 42778905), (3, 14259635), (5, 8555781), (13, 3290685), (15, 2851927), (39, 1096895), (65, 658137), (195, 219379), (431, 99255), (509, 84045), (1293, 33085), (1527, 28015), (2155, 19851), (2545, 16809), (5603, 7635), (6465, 6617)]