81107740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{82763}}^1$

素因数の和:82786

約数の個数: 36

約数和(自身を含む): 198137016

約数和(自身を除く): 117029276

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 82763, 165526, 331052, 413815, 579341, 827630, 1158682, 1655260, 2317364, 2896705, 4055387, 5793410, 8110774, 11586820, 16221548, 20276935, 40553870, 81107740]

約数ペア:

[(1, 81107740), (2, 40553870), (4, 20276935), (5, 16221548), (7, 11586820), (10, 8110774), (14, 5793410), (20, 4055387), (28, 2896705), (35, 2317364), (49, 1655260), (70, 1158682), (98, 827630), (140, 579341), (196, 413815), (245, 331052), (490, 165526), (980, 82763)]