20868130

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{90731}}^1$

素因数の和:90761

約数の個数: 16

約数和(自身を含む): 39196224

約数和(自身を除く): 18328094

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 90731, 181462, 453655, 907310, 2086813, 4173626, 10434065, 20868130]

約数ペア:

[(1, 20868130), (2, 10434065), (5, 4173626), (10, 2086813), (23, 907310), (46, 453655), (115, 181462), (230, 90731)]