128678706

素因数分解:

$2^1\times 3^7\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:140

約数の個数: 128

約数和(自身を含む): 326215680

約数和(自身を除く): 197536974

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 31, 39, 54, 62, 73, 78, 81, 93, 117, 146, 162, 186, 219, 234, 243, 279, 351, 403, 438, 486, 558, 657, 702, 729, 806, 837, 949, 1053, 1209, 1314, 1458, 1674, 1898, 1971, 2106, 2187, 2263, 2418, 2511, 2847, 3159, 3627, 3942, 4374, 4526, 5022, 5694, 5913, 6318, 6789, 7254, 7533, 8541, 9477, 10881, 11826, 13578, 15066, 17082, 17739, 18954, 20367, 21762, 22599, 25623, 28431, 29419, 32643, 35478, 40734, 45198, 51246, 53217, 56862, 58838, 61101, 65286, 67797, 76869, 88257, 97929, 106434, 122202, 135594, 153738, 159651, 176514, 183303, 195858, 230607, 264771, 293787, 319302, 366606, 461214, 529542, 549909, 587574, 691821, 794313, 881361, 1099818, 1383642, 1588626, 1649727, 1762722, 2075463, 2382939, 3299454, 4150926, 4765878, 4949181, 7148817, 9898362, 14297634, 21446451, 42892902, 64339353, 128678706]

約数ペア:

[(1, 128678706), (2, 64339353), (3, 42892902), (6, 21446451), (9, 14297634), (13, 9898362), (18, 7148817), (26, 4949181), (27, 4765878), (31, 4150926), (39, 3299454), (54, 2382939), (62, 2075463), (73, 1762722), (78, 1649727), (81, 1588626), (93, 1383642), (117, 1099818), (146, 881361), (162, 794313), (186, 691821), (219, 587574), (234, 549909), (243, 529542), (279, 461214), (351, 366606), (403, 319302), (438, 293787), (486, 264771), (558, 230607), (657, 195858), (702, 183303), (729, 176514), (806, 159651), (837, 153738), (949, 135594), (1053, 122202), (1209, 106434), (1314, 97929), (1458, 88257), (1674, 76869), (1898, 67797), (1971, 65286), (2106, 61101), (2187, 58838), (2263, 56862), (2418, 53217), (2511, 51246), (2847, 45198), (3159, 40734), (3627, 35478), (3942, 32643), (4374, 29419), (4526, 28431), (5022, 25623), (5694, 22599), (5913, 21762), (6318, 20367), (6789, 18954), (7254, 17739), (7533, 17082), (8541, 15066), (9477, 13578), (10881, 11826)]