20081620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77237}}^1$

素因数の和:77259

約数の個数: 24

約数和(自身を含む): 45415944

約数和(自身を除く): 25334324

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 77237, 154474, 308948, 386185, 772370, 1004081, 1544740, 2008162, 4016324, 5020405, 10040810, 20081620]

約数ペア:

[(1, 20081620), (2, 10040810), (4, 5020405), (5, 4016324), (10, 2008162), (13, 1544740), (20, 1004081), (26, 772370), (52, 386185), (65, 308948), (130, 154474), (260, 77237)]