12972275

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{233}}^1$

素因数の和:391

約数の個数: 24

約数和(自身を含む): 17235504

約数和(自身を除く): 4263229

約数列:

[1, 5, 17, 25, 85, 131, 233, 425, 655, 1165, 2227, 3275, 3961, 5825, 11135, 19805, 30523, 55675, 99025, 152615, 518891, 763075, 2594455, 12972275]

約数ペア:

[(1, 12972275), (5, 2594455), (17, 763075), (25, 518891), (85, 152615), (131, 99025), (233, 55675), (425, 30523), (655, 19805), (1165, 11135), (2227, 5825), (3275, 3961)]