9800720

素因数分解:

$2^4\times 5^1\times {\mathrm{122509}}^1$

素因数の和:122522

約数の個数: 20

約数和(自身を含む): 22786860

約数和(自身を除く): 12986140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 122509, 245018, 490036, 612545, 980072, 1225090, 1960144, 2450180, 4900360, 9800720]

約数ペア:

[(1, 9800720), (2, 4900360), (4, 2450180), (5, 1960144), (8, 1225090), (10, 980072), (16, 612545), (20, 490036), (40, 245018), (80, 122509)]