73640720

素因数分解:

$2^4\times 5^1\times {\mathrm{920509}}^1$

素因数の和:920522

約数の個数: 20

約数和(自身を含む): 171214860

約数和(自身を除く): 97574140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 920509, 1841018, 3682036, 4602545, 7364072, 9205090, 14728144, 18410180, 36820360, 73640720]

約数ペア:

[(1, 73640720), (2, 36820360), (4, 18410180), (5, 14728144), (8, 9205090), (10, 7364072), (16, 4602545), (20, 3682036), (40, 1841018), (80, 920509)]