28820240

素因数分解:

$2^4\times 5^1\times {\mathrm{337}}^1\times {\mathrm{1069}}^1$

素因数の和:1419

約数の個数: 40

約数和(自身を含む): 67268760

約数和(自身を除く): 38448520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 337, 674, 1069, 1348, 1685, 2138, 2696, 3370, 4276, 5345, 5392, 6740, 8552, 10690, 13480, 17104, 21380, 26960, 42760, 85520, 360253, 720506, 1441012, 1801265, 2882024, 3602530, 5764048, 7205060, 14410120, 28820240]

約数ペア:

[(1, 28820240), (2, 14410120), (4, 7205060), (5, 5764048), (8, 3602530), (10, 2882024), (16, 1801265), (20, 1441012), (40, 720506), (80, 360253), (337, 85520), (674, 42760), (1069, 26960), (1348, 21380), (1685, 17104), (2138, 13480), (2696, 10690), (3370, 8552), (4276, 6740), (5345, 5392)]