7840720

素因数分解:

$2^4\times 5^1\times {\mathrm{98009}}^1$

素因数の和:98022

約数の個数: 20

約数和(自身を含む): 18229860

約数和(自身を除く): 10389140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 98009, 196018, 392036, 490045, 784072, 980090, 1568144, 1960180, 3920360, 7840720]

約数ペア:

[(1, 7840720), (2, 3920360), (4, 1960180), (5, 1568144), (8, 980090), (10, 784072), (16, 490045), (20, 392036), (40, 196018), (80, 98009)]