19240720

素因数分解:

$2^4\times 5^1\times {\mathrm{240509}}^1$

素因数の和:240522

約数の個数: 20

約数和(自身を含む): 44734860

約数和(自身を除く): 25494140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 240509, 481018, 962036, 1202545, 1924072, 2405090, 3848144, 4810180, 9620360, 19240720]

約数ペア:

[(1, 19240720), (2, 9620360), (4, 4810180), (5, 3848144), (8, 2405090), (10, 1924072), (16, 1202545), (20, 962036), (40, 481018), (80, 240509)]