81707256

素因数分解:

$2^3\times 3^2\times {\mathrm{431}}^1\times {\mathrm{2633}}^1$

素因数の和:3076

約数の個数: 48

約数和(自身を含む): 221888160

約数和(自身を除く): 140180904

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 431, 862, 1293, 1724, 2586, 2633, 3448, 3879, 5172, 5266, 7758, 7899, 10344, 10532, 15516, 15798, 21064, 23697, 31032, 31596, 47394, 63192, 94788, 189576, 1134823, 2269646, 3404469, 4539292, 6808938, 9078584, 10213407, 13617876, 20426814, 27235752, 40853628, 81707256]

約数ペア:

[(1, 81707256), (2, 40853628), (3, 27235752), (4, 20426814), (6, 13617876), (8, 10213407), (9, 9078584), (12, 6808938), (18, 4539292), (24, 3404469), (36, 2269646), (72, 1134823), (431, 189576), (862, 94788), (1293, 63192), (1724, 47394), (2586, 31596), (2633, 31032), (3448, 23697), (3879, 21064), (5172, 15798), (5266, 15516), (7758, 10532), (7899, 10344)]