81964364

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{20719}}^1$

素因数の和:20789

約数の個数: 24

約数和(自身を含む): 153162240

約数和(自身を除く): 71197876

約数列:

[1, 2, 4, 23, 43, 46, 86, 92, 172, 989, 1978, 3956, 20719, 41438, 82876, 476537, 890917, 953074, 1781834, 1906148, 3563668, 20491091, 40982182, 81964364]

約数ペア:

[(1, 81964364), (2, 40982182), (4, 20491091), (23, 3563668), (43, 1906148), (46, 1781834), (86, 953074), (92, 890917), (172, 476537), (989, 82876), (1978, 41438), (3956, 20719)]