81330642

素因数分解:

$2^1\times 3^5\times {\mathrm{71}}^1\times {\mathrm{2357}}^1$

素因数の和:2445

約数の個数: 48

約数和(自身を含む): 185395392

約数和(自身を除く): 104064750

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 71, 81, 142, 162, 213, 243, 426, 486, 639, 1278, 1917, 2357, 3834, 4714, 5751, 7071, 11502, 14142, 17253, 21213, 34506, 42426, 63639, 127278, 167347, 190917, 334694, 381834, 502041, 572751, 1004082, 1145502, 1506123, 3012246, 4518369, 9036738, 13555107, 27110214, 40665321, 81330642]

約数ペア:

[(1, 81330642), (2, 40665321), (3, 27110214), (6, 13555107), (9, 9036738), (18, 4518369), (27, 3012246), (54, 1506123), (71, 1145502), (81, 1004082), (142, 572751), (162, 502041), (213, 381834), (243, 334694), (426, 190917), (486, 167347), (639, 127278), (1278, 63639), (1917, 42426), (2357, 34506), (3834, 21213), (4714, 17253), (5751, 14142), (7071, 11502)]