20690830

素因数分解:

$2^1\times 5^1\times {\mathrm{311}}^1\times {\mathrm{6653}}^1$

素因数の和:6971

約数の個数: 16

約数和(自身を含む): 37368864

約数和(自身を除く): 16678034

約数列:

[1, 2, 5, 10, 311, 622, 1555, 3110, 6653, 13306, 33265, 66530, 2069083, 4138166, 10345415, 20690830]

約数ペア:

[(1, 20690830), (2, 10345415), (5, 4138166), (10, 2069083), (311, 66530), (622, 33265), (1555, 13306), (3110, 6653)]