78448220

素因数分解:

$2^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{11239}}^1$

素因数の和:11597

約数の個数: 24

約数和(自身を含む): 165228000

約数和(自身を除く): 86779780

約数列:

[1, 2, 4, 5, 10, 20, 349, 698, 1396, 1745, 3490, 6980, 11239, 22478, 44956, 56195, 112390, 224780, 3922411, 7844822, 15689644, 19612055, 39224110, 78448220]

約数ペア:

[(1, 78448220), (2, 39224110), (4, 19612055), (5, 15689644), (10, 7844822), (20, 3922411), (349, 224780), (698, 112390), (1396, 56195), (1745, 44956), (3490, 22478), (6980, 11239)]