40138576

素因数分解:

$2^4\times {\mathrm{389}}^1\times {\mathrm{6449}}^1$

素因数の和:6846

約数の個数: 20

約数和(自身を含む): 77980500

約数和(自身を除く): 37841924

約数列:

[1, 2, 4, 8, 16, 389, 778, 1556, 3112, 6224, 6449, 12898, 25796, 51592, 103184, 2508661, 5017322, 10034644, 20069288, 40138576]

約数ペア:

[(1, 40138576), (2, 20069288), (4, 10034644), (8, 5017322), (16, 2508661), (389, 103184), (778, 51592), (1556, 25796), (3112, 12898), (6224, 6449)]