20067905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{127}}^1$

素因数の和:186

約数の個数: 48

約数和(自身を含む): 30357504

約数和(自身を除く): 10289599

約数列:

[1, 5, 11, 13, 17, 55, 65, 85, 127, 143, 169, 187, 221, 635, 715, 845, 935, 1105, 1397, 1651, 1859, 2159, 2431, 2873, 6985, 8255, 9295, 10795, 12155, 14365, 18161, 21463, 23749, 28067, 31603, 90805, 107315, 118745, 140335, 158015, 236093, 308737, 364871, 1180465, 1543685, 1824355, 4013581, 20067905]

約数ペア:

[(1, 20067905), (5, 4013581), (11, 1824355), (13, 1543685), (17, 1180465), (55, 364871), (65, 308737), (85, 236093), (127, 158015), (143, 140335), (169, 118745), (187, 107315), (221, 90805), (635, 31603), (715, 28067), (845, 23749), (935, 21463), (1105, 18161), (1397, 14365), (1651, 12155), (1859, 10795), (2159, 9295), (2431, 8255), (2873, 6985)]