208940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{337}}^1$

素因数の和:377

約数の個数: 24

約数和(自身を含む): 454272

約数和(自身を除く): 245332

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 337, 620, 674, 1348, 1685, 3370, 6740, 10447, 20894, 41788, 52235, 104470, 208940]

約数ペア:

[(1, 208940), (2, 104470), (4, 52235), (5, 41788), (10, 20894), (20, 10447), (31, 6740), (62, 3370), (124, 1685), (155, 1348), (310, 674), (337, 620)]