81427036

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{389}}^1\times {\mathrm{1217}}^1$

素因数の和:1653

約数の個数: 24

約数和(自身を含む): 146306160

約数和(自身を除く): 64879124

約数列:

[1, 2, 4, 43, 86, 172, 389, 778, 1217, 1556, 2434, 4868, 16727, 33454, 52331, 66908, 104662, 209324, 473413, 946826, 1893652, 20356759, 40713518, 81427036]

約数ペア:

[(1, 81427036), (2, 40713518), (4, 20356759), (43, 1893652), (86, 946826), (172, 473413), (389, 209324), (778, 104662), (1217, 66908), (1556, 52331), (2434, 33454), (4868, 16727)]