1320442960

素因数分解:

$2^4\times 5^1\times {\mathrm{16505537}}^1$

素因数の和:16505550

約数の個数: 20

約数和(自身を含む): 3070030068

約数和(自身を除く): 1749587108

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 16505537, 33011074, 66022148, 82527685, 132044296, 165055370, 264088592, 330110740, 660221480, 1320442960]

約数ペア:

[(1, 1320442960), (2, 660221480), (4, 330110740), (5, 264088592), (8, 165055370), (10, 132044296), (16, 82527685), (20, 66022148), (40, 33011074), (80, 16505537)]