71771816

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:286

約数の個数: 64

約数和(自身を含む): 147840000

約数和(自身を除く): 76068184

約数列:

[1, 2, 4, 8, 19, 38, 43, 76, 79, 86, 139, 152, 158, 172, 278, 316, 344, 556, 632, 817, 1112, 1501, 1634, 2641, 3002, 3268, 3397, 5282, 5977, 6004, 6536, 6794, 10564, 10981, 11954, 12008, 13588, 21128, 21962, 23908, 27176, 43924, 47816, 64543, 87848, 113563, 129086, 208639, 227126, 258172, 417278, 454252, 472183, 516344, 834556, 908504, 944366, 1669112, 1888732, 3777464, 8971477, 17942954, 35885908, 71771816]

約数ペア:

[(1, 71771816), (2, 35885908), (4, 17942954), (8, 8971477), (19, 3777464), (38, 1888732), (43, 1669112), (76, 944366), (79, 908504), (86, 834556), (139, 516344), (152, 472183), (158, 454252), (172, 417278), (278, 258172), (316, 227126), (344, 208639), (556, 129086), (632, 113563), (817, 87848), (1112, 64543), (1501, 47816), (1634, 43924), (2641, 27176), (3002, 23908), (3268, 21962), (3397, 21128), (5282, 13588), (5977, 12008), (6004, 11954), (6536, 10981), (6794, 10564)]