220296908

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{325883}}^1$

素因数の和:325913

約数の個数: 18

約数和(自身を含む): 417457404

約数和(自身を除く): 197160496

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 325883, 651766, 1303532, 4236479, 8472958, 16945916, 55074227, 110148454, 220296908]

約数ペア:

[(1, 220296908), (2, 110148454), (4, 55074227), (13, 16945916), (26, 8472958), (52, 4236479), (169, 1303532), (338, 651766), (676, 325883)]