47142980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{81281}}^1$

素因数の和:81319

約数の個数: 24

約数和(自身を含む): 102415320

約数和(自身を除く): 55272340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 81281, 162562, 325124, 406405, 812810, 1625620, 2357149, 4714298, 9428596, 11785745, 23571490, 47142980]

約数ペア:

[(1, 47142980), (2, 23571490), (4, 11785745), (5, 9428596), (10, 4714298), (20, 2357149), (29, 1625620), (58, 812810), (116, 406405), (145, 325124), (290, 162562), (580, 81281)]