66611740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{256199}}^1$

素因数の和:256221

約数の個数: 24

約数和(自身を含む): 150645600

約数和(自身を除く): 84033860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 256199, 512398, 1024796, 1280995, 2561990, 3330587, 5123980, 6661174, 13322348, 16652935, 33305870, 66611740]

約数ペア:

[(1, 66611740), (2, 33305870), (4, 16652935), (5, 13322348), (10, 6661174), (13, 5123980), (20, 3330587), (26, 2561990), (52, 1280995), (65, 1024796), (130, 512398), (260, 256199)]