64121155

素因数分解:

$5^1\times 7^2\times {\mathrm{157}}^1\times {\mathrm{1667}}^1$

素因数の和:1843

約数の個数: 24

約数和(自身を含む): 90132048

約数和(自身を除く): 26010893

約数列:

[1, 5, 7, 35, 49, 157, 245, 785, 1099, 1667, 5495, 7693, 8335, 11669, 38465, 58345, 81683, 261719, 408415, 1308595, 1832033, 9160165, 12824231, 64121155]

約数ペア:

[(1, 64121155), (5, 12824231), (7, 9160165), (35, 1832033), (49, 1308595), (157, 408415), (245, 261719), (785, 81683), (1099, 58345), (1667, 38465), (5495, 11669), (7693, 8335)]