81009488

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{271}}^1$

素因数の和:460

約数の個数: 80

約数和(自身を含む): 191844864

約数和(自身を除く): 110835376

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 157, 238, 271, 272, 314, 476, 542, 628, 952, 1084, 1099, 1256, 1897, 1904, 2168, 2198, 2512, 2669, 3794, 4336, 4396, 4607, 5338, 7588, 8792, 9214, 10676, 15176, 17584, 18428, 18683, 21352, 30352, 32249, 36856, 37366, 42547, 42704, 64498, 73712, 74732, 85094, 128996, 149464, 170188, 257992, 297829, 298928, 340376, 515984, 595658, 680752, 723299, 1191316, 1446598, 2382632, 2893196, 4765264, 5063093, 5786392, 10126186, 11572784, 20252372, 40504744, 81009488]

約数ペア:

[(1, 81009488), (2, 40504744), (4, 20252372), (7, 11572784), (8, 10126186), (14, 5786392), (16, 5063093), (17, 4765264), (28, 2893196), (34, 2382632), (56, 1446598), (68, 1191316), (112, 723299), (119, 680752), (136, 595658), (157, 515984), (238, 340376), (271, 298928), (272, 297829), (314, 257992), (476, 170188), (542, 149464), (628, 128996), (952, 85094), (1084, 74732), (1099, 73712), (1256, 64498), (1897, 42704), (1904, 42547), (2168, 37366), (2198, 36856), (2512, 32249), (2669, 30352), (3794, 21352), (4336, 18683), (4396, 18428), (4607, 17584), (5338, 15176), (7588, 10676), (8792, 9214)]