664694545

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1\times {\mathrm{173}}^1$

素因数の和:465

約数の個数: 32

約数和(自身を含む): 829854720

約数和(自身を除く): 165160175

約数列:

[1, 5, 71, 79, 137, 173, 355, 395, 685, 865, 5609, 9727, 10823, 12283, 13667, 23701, 28045, 48635, 54115, 61415, 68335, 118505, 768433, 970357, 1682771, 1872379, 3842165, 4851785, 8413855, 9361895, 132938909, 664694545]

約数ペア:

[(1, 664694545), (5, 132938909), (71, 9361895), (79, 8413855), (137, 4851785), (173, 3842165), (355, 1872379), (395, 1682771), (685, 970357), (865, 768433), (5609, 118505), (9727, 68335), (10823, 61415), (12283, 54115), (13667, 48635), (23701, 28045)]