78571966

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1\times {\mathrm{199}}^1$

素因数の和:480

約数の個数: 32

約数和(自身を含む): 131155200

約数和(自身を除く): 52583234

約数列:

[1, 2, 11, 22, 131, 137, 199, 262, 274, 398, 1441, 1507, 2189, 2882, 3014, 4378, 17947, 26069, 27263, 35894, 52138, 54526, 197417, 286759, 299893, 394834, 573518, 599786, 3571453, 7142906, 39285983, 78571966]

約数ペア:

[(1, 78571966), (2, 39285983), (11, 7142906), (22, 3571453), (131, 599786), (137, 573518), (199, 394834), (262, 299893), (274, 286759), (398, 197417), (1441, 54526), (1507, 52138), (2189, 35894), (2882, 27263), (3014, 26069), (4378, 17947)]