28828040

素因数分解:

$2^3\times 5^1\times {\mathrm{839}}^1\times {\mathrm{859}}^1$

素因数の和:1709

約数の個数: 32

約数和(自身を含む): 65016000

約数和(自身を除く): 36187960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 839, 859, 1678, 1718, 3356, 3436, 4195, 4295, 6712, 6872, 8390, 8590, 16780, 17180, 33560, 34360, 720701, 1441402, 2882804, 3603505, 5765608, 7207010, 14414020, 28828040]

約数ペア:

[(1, 28828040), (2, 14414020), (4, 7207010), (5, 5765608), (8, 3603505), (10, 2882804), (20, 1441402), (40, 720701), (839, 34360), (859, 33560), (1678, 17180), (1718, 16780), (3356, 8590), (3436, 8390), (4195, 6872), (4295, 6712)]