39897740

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28097}}^1$

素因数の和:28177

約数の個数: 24

約数和(自身を含む): 84968352

約数和(自身を除く): 45070612

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 28097, 56194, 112388, 140485, 280970, 561940, 1994887, 3989774, 7979548, 9974435, 19948870, 39897740]

約数ペア:

[(1, 39897740), (2, 19948870), (4, 9974435), (5, 7979548), (10, 3989774), (20, 1994887), (71, 561940), (142, 280970), (284, 140485), (355, 112388), (710, 56194), (1420, 28097)]