81121464

素因数分解:

$2^3\times 3^2\times {\mathrm{37}}^2\times {\mathrm{823}}^1$

素因数の和:909

約数の個数: 72

約数和(自身を含む): 226076760

約数和(自身を除く): 144955296

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 37, 72, 74, 111, 148, 222, 296, 333, 444, 666, 823, 888, 1332, 1369, 1646, 2469, 2664, 2738, 3292, 4107, 4938, 5476, 6584, 7407, 8214, 9876, 10952, 12321, 14814, 16428, 19752, 24642, 29628, 30451, 32856, 49284, 59256, 60902, 91353, 98568, 121804, 182706, 243608, 274059, 365412, 548118, 730824, 1096236, 1126687, 2192472, 2253374, 3380061, 4506748, 6760122, 9013496, 10140183, 13520244, 20280366, 27040488, 40560732, 81121464]

約数ペア:

[(1, 81121464), (2, 40560732), (3, 27040488), (4, 20280366), (6, 13520244), (8, 10140183), (9, 9013496), (12, 6760122), (18, 4506748), (24, 3380061), (36, 2253374), (37, 2192472), (72, 1126687), (74, 1096236), (111, 730824), (148, 548118), (222, 365412), (296, 274059), (333, 243608), (444, 182706), (666, 121804), (823, 98568), (888, 91353), (1332, 60902), (1369, 59256), (1646, 49284), (2469, 32856), (2664, 30451), (2738, 29628), (3292, 24642), (4107, 19752), (4938, 16428), (5476, 14814), (6584, 12321), (7407, 10952), (8214, 9876)]