2754980

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{991}}^1$

素因数の和:1139

約数の個数: 24

約数和(自身を含む): 5832960

約数和(自身を除く): 3077980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 991, 1390, 1982, 2780, 3964, 4955, 9910, 19820, 137749, 275498, 550996, 688745, 1377490, 2754980]

約数ペア:

[(1, 2754980), (2, 1377490), (4, 688745), (5, 550996), (10, 275498), (20, 137749), (139, 19820), (278, 9910), (556, 4955), (695, 3964), (991, 2780), (1390, 1982)]