18843280

素因数分解:

$2^4\times 5^1\times {\mathrm{235541}}^1$

素因数の和:235554

約数の個数: 20

約数和(自身を含む): 43810812

約数和(自身を除く): 24967532

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 235541, 471082, 942164, 1177705, 1884328, 2355410, 3768656, 4710820, 9421640, 18843280]

約数ペア:

[(1, 18843280), (2, 9421640), (4, 4710820), (5, 3768656), (8, 2355410), (10, 1884328), (16, 1177705), (20, 942164), (40, 471082), (80, 235541)]