128328280

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{8887}}^1$

素因数の和:8936

約数の個数: 48

約数和(自身を含む): 304769520

約数和(自身を除く): 176441240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 1444, 1805, 2888, 3610, 7220, 8887, 14440, 17774, 35548, 44435, 71096, 88870, 168853, 177740, 337706, 355480, 675412, 844265, 1350824, 1688530, 3208207, 3377060, 6416414, 6754120, 12832828, 16041035, 25665656, 32082070, 64164140, 128328280]

約数ペア:

[(1, 128328280), (2, 64164140), (4, 32082070), (5, 25665656), (8, 16041035), (10, 12832828), (19, 6754120), (20, 6416414), (38, 3377060), (40, 3208207), (76, 1688530), (95, 1350824), (152, 844265), (190, 675412), (361, 355480), (380, 337706), (722, 177740), (760, 168853), (1444, 88870), (1805, 71096), (2888, 44435), (3610, 35548), (7220, 17774), (8887, 14440)]