81260278

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{90089}}^1$

素因数の和:90143

約数の個数: 16

約数和(自身を含む): 136216080

約数和(自身を除く): 54955802

約数列:

[1, 2, 11, 22, 41, 82, 451, 902, 90089, 180178, 990979, 1981958, 3693649, 7387298, 40630139, 81260278]

約数ペア:

[(1, 81260278), (2, 40630139), (11, 7387298), (22, 3693649), (41, 1981958), (82, 990979), (451, 180178), (902, 90089)]