20681255

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{1117}}^1$

素因数の和:1175

約数の個数: 24

約数和(自身を含む): 29676192

約数和(自身を除く): 8994937

約数列:

[1, 5, 7, 23, 35, 115, 161, 529, 805, 1117, 2645, 3703, 5585, 7819, 18515, 25691, 39095, 128455, 179837, 590893, 899185, 2954465, 4136251, 20681255]

約数ペア:

[(1, 20681255), (5, 4136251), (7, 2954465), (23, 899185), (35, 590893), (115, 179837), (161, 128455), (529, 39095), (805, 25691), (1117, 18515), (2645, 7819), (3703, 5585)]