19990804685

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{233}}^1\times {\mathrm{5981}}^1$

素因数の和:6389

約数の個数: 32

約数和(自身を含む): 25532133120

約数和(自身を除く): 5541328435

約数列:

[1, 5, 19, 95, 151, 233, 755, 1165, 2869, 4427, 5981, 14345, 22135, 29905, 35183, 113639, 175915, 568195, 668477, 903131, 1393573, 3342385, 4515655, 6967865, 17159489, 26477887, 85797445, 132389435, 210429523, 1052147615, 3998160937, 19990804685]

約数ペア:

[(1, 19990804685), (5, 3998160937), (19, 1052147615), (95, 210429523), (151, 132389435), (233, 85797445), (755, 26477887), (1165, 17159489), (2869, 6967865), (4427, 4515655), (5981, 3342385), (14345, 1393573), (22135, 903131), (29905, 668477), (35183, 568195), (113639, 175915)]