18835280

素因数分解:

$2^4\times 5^1\times {\mathrm{235441}}^1$

素因数の和:235454

約数の個数: 20

約数和(自身を含む): 43792212

約数和(自身を除く): 24956932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 235441, 470882, 941764, 1177205, 1883528, 2354410, 3767056, 4708820, 9417640, 18835280]

約数ペア:

[(1, 18835280), (2, 9417640), (4, 4708820), (5, 3767056), (8, 2354410), (10, 1883528), (16, 1177205), (20, 941764), (40, 470882), (80, 235441)]