905680

素因数分解:

$2^4\times 5^1\times {\mathrm{11321}}^1$

素因数の和:11334

約数の個数: 20

約数和(自身を含む): 2105892

約数和(自身を除く): 1200212

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 11321, 22642, 45284, 56605, 90568, 113210, 181136, 226420, 452840, 905680]

約数ペア:

[(1, 905680), (2, 452840), (4, 226420), (5, 181136), (8, 113210), (10, 90568), (16, 56605), (20, 45284), (40, 22642), (80, 11321)]