28738040

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31237}}^1$

素因数の和:31271

約数の個数: 32

約数和(自身を含む): 67474080

約数和(自身を除く): 38736040

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 31237, 62474, 124948, 156185, 249896, 312370, 624740, 718451, 1249480, 1436902, 2873804, 3592255, 5747608, 7184510, 14369020, 28738040]

約数ペア:

[(1, 28738040), (2, 14369020), (4, 7184510), (5, 5747608), (8, 3592255), (10, 2873804), (20, 1436902), (23, 1249480), (40, 718451), (46, 624740), (92, 312370), (115, 249896), (184, 156185), (230, 124948), (460, 62474), (920, 31237)]