81816546

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1$

素因数の和:248

約数の個数: 128

約数和(自身を含む): 215377920

約数和(自身を除く): 133561374

約数列:

[1, 2, 3, 6, 7, 14, 17, 19, 21, 34, 37, 38, 42, 51, 57, 74, 102, 111, 114, 119, 133, 163, 222, 238, 259, 266, 323, 326, 357, 399, 489, 518, 629, 646, 703, 714, 777, 798, 969, 978, 1141, 1258, 1406, 1554, 1887, 1938, 2109, 2261, 2282, 2771, 3097, 3423, 3774, 4218, 4403, 4522, 4921, 5542, 6031, 6194, 6783, 6846, 8313, 8806, 9291, 9842, 11951, 12062, 13209, 13566, 14763, 16626, 18093, 18582, 19397, 21679, 23902, 26418, 29526, 35853, 36186, 38794, 42217, 43358, 52649, 58191, 65037, 71706, 83657, 84434, 102527, 105298, 114589, 116382, 126651, 130074, 157947, 167314, 205054, 229178, 250971, 253302, 307581, 315894, 343767, 368543, 501942, 615162, 687534, 717689, 737086, 802123, 1105629, 1435378, 1604246, 1948013, 2153067, 2211258, 2406369, 3896026, 4306134, 4812738, 5844039, 11688078, 13636091, 27272182, 40908273, 81816546]

約数ペア:

[(1, 81816546), (2, 40908273), (3, 27272182), (6, 13636091), (7, 11688078), (14, 5844039), (17, 4812738), (19, 4306134), (21, 3896026), (34, 2406369), (37, 2211258), (38, 2153067), (42, 1948013), (51, 1604246), (57, 1435378), (74, 1105629), (102, 802123), (111, 737086), (114, 717689), (119, 687534), (133, 615162), (163, 501942), (222, 368543), (238, 343767), (259, 315894), (266, 307581), (323, 253302), (326, 250971), (357, 229178), (399, 205054), (489, 167314), (518, 157947), (629, 130074), (646, 126651), (703, 116382), (714, 114589), (777, 105298), (798, 102527), (969, 84434), (978, 83657), (1141, 71706), (1258, 65037), (1406, 58191), (1554, 52649), (1887, 43358), (1938, 42217), (2109, 38794), (2261, 36186), (2282, 35853), (2771, 29526), (3097, 26418), (3423, 23902), (3774, 21679), (4218, 19397), (4403, 18582), (4522, 18093), (4921, 16626), (5542, 14763), (6031, 13566), (6194, 13209), (6783, 12062), (6846, 11951), (8313, 9842), (8806, 9291)]