81243812

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{1562381}}^1$

素因数の和:1562398

約数の個数: 12

約数和(自身を含む): 153113436

約数和(自身を除く): 71869624

約数列:

[1, 2, 4, 13, 26, 52, 1562381, 3124762, 6249524, 20310953, 40621906, 81243812]

約数ペア:

[(1, 81243812), (2, 40621906), (4, 20310953), (13, 6249524), (26, 3124762), (52, 1562381)]