123475280

素因数分解:

$2^4\times 5^1\times {\mathrm{1543441}}^1$

素因数の和:1543454

約数の個数: 20

約数和(自身を含む): 287080212

約数和(自身を除く): 163604932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1543441, 3086882, 6173764, 7717205, 12347528, 15434410, 24695056, 30868820, 61737640, 123475280]

約数ペア:

[(1, 123475280), (2, 61737640), (4, 30868820), (5, 24695056), (8, 15434410), (10, 12347528), (16, 7717205), (20, 6173764), (40, 3086882), (80, 1543441)]