219510005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{911}}^1$

素因数の和:1277

約数の個数: 32

約数和(自身を含む): 310722048

約数和(自身を除く): 91212043

約数列:

[1, 5, 11, 13, 55, 65, 143, 337, 715, 911, 1685, 3707, 4381, 4555, 10021, 11843, 18535, 21905, 48191, 50105, 59215, 130273, 240955, 307007, 651365, 1535035, 3377077, 3991091, 16885385, 19955455, 43902001, 219510005]

約数ペア:

[(1, 219510005), (5, 43902001), (11, 19955455), (13, 16885385), (55, 3991091), (65, 3377077), (143, 1535035), (337, 651365), (715, 307007), (911, 240955), (1685, 130273), (3707, 59215), (4381, 50105), (4555, 48191), (10021, 21905), (11843, 18535)]