81789424

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{124679}}^1$

素因数の和:124728

約数の個数: 20

約数和(自身を含む): 162333360

約数和(自身を除く): 80543936

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 124679, 249358, 498716, 997432, 1994864, 5111839, 10223678, 20447356, 40894712, 81789424]

約数ペア:

[(1, 81789424), (2, 40894712), (4, 20447356), (8, 10223678), (16, 5111839), (41, 1994864), (82, 997432), (164, 498716), (328, 249358), (656, 124679)]