39995860

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{14387}}^1$

素因数の和:14535

約数の個数: 24

約数和(自身を含む): 84601440

約数和(自身を除く): 44605580

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 14387, 28774, 57548, 71935, 143870, 287740, 1999793, 3999586, 7999172, 9998965, 19997930, 39995860]

約数ペア:

[(1, 39995860), (2, 19997930), (4, 9998965), (5, 7999172), (10, 3999586), (20, 1999793), (139, 287740), (278, 143870), (556, 71935), (695, 57548), (1390, 28774), (2780, 14387)]