81858896

素因数分解:

$2^4\times 7^1\times {\mathrm{409}}^1\times {\mathrm{1787}}^1$

素因数の和:2211

約数の個数: 40

約数和(自身を含む): 181803840

約数和(自身を除く): 99944944

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 409, 818, 1636, 1787, 2863, 3272, 3574, 5726, 6544, 7148, 11452, 12509, 14296, 22904, 25018, 28592, 45808, 50036, 100072, 200144, 730883, 1461766, 2923532, 5116181, 5847064, 10232362, 11694128, 20464724, 40929448, 81858896]

約数ペア:

[(1, 81858896), (2, 40929448), (4, 20464724), (7, 11694128), (8, 10232362), (14, 5847064), (16, 5116181), (28, 2923532), (56, 1461766), (112, 730883), (409, 200144), (818, 100072), (1636, 50036), (1787, 45808), (2863, 28592), (3272, 25018), (3574, 22904), (5726, 14296), (6544, 12509), (7148, 11452)]