90891004

素因数分解:

$2^2\times {\mathrm{431}}^1\times {\mathrm{52721}}^1$

素因数の和:53156

約数の個数: 12

約数和(自身を含む): 159431328

約数和(自身を除く): 68540324

約数列:

[1, 2, 4, 431, 862, 1724, 52721, 105442, 210884, 22722751, 45445502, 90891004]

約数ペア:

[(1, 90891004), (2, 45445502), (4, 22722751), (431, 210884), (862, 105442), (1724, 52721)]