220171172

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{325697}}^1$

素因数の和:325727

約数の個数: 18

約数和(自身を含む): 417219138

約数和(自身を除く): 197047966

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 325697, 651394, 1302788, 4234061, 8468122, 16936244, 55042793, 110085586, 220171172]

約数ペア:

[(1, 220171172), (2, 110085586), (4, 55042793), (13, 16936244), (26, 8468122), (52, 4234061), (169, 1302788), (338, 651394), (676, 325697)]