209778426

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1$

素因数の和:313

約数の個数: 144

約数和(自身を含む): 557706240

約数和(自身を除く): 347927814

約数列:

[1, 2, 3, 6, 9, 11, 13, 18, 22, 26, 31, 33, 39, 62, 66, 78, 93, 99, 117, 121, 143, 186, 198, 234, 239, 242, 279, 286, 341, 363, 403, 429, 478, 558, 682, 717, 726, 806, 858, 1023, 1089, 1209, 1287, 1434, 1573, 2046, 2151, 2178, 2418, 2574, 2629, 3069, 3107, 3146, 3627, 3751, 4302, 4433, 4719, 5258, 6138, 6214, 7254, 7409, 7502, 7887, 8866, 9321, 9438, 11253, 13299, 14157, 14818, 15774, 18642, 22227, 22506, 23661, 26598, 27963, 28314, 28919, 33759, 34177, 39897, 44454, 47322, 48763, 55926, 57838, 66681, 67518, 68354, 79794, 81499, 86757, 96317, 97526, 102531, 133362, 146289, 162998, 173514, 192634, 205062, 244497, 260271, 288951, 292578, 307593, 375947, 438867, 488994, 520542, 577902, 615186, 733491, 751894, 866853, 877734, 896489, 1059487, 1127841, 1466982, 1733706, 1792978, 2118974, 2255682, 2689467, 3178461, 3383523, 5378934, 6356922, 6767046, 8068401, 9535383, 11654357, 16136802, 19070766, 23308714, 34963071, 69926142, 104889213, 209778426]

約数ペア:

[(1, 209778426), (2, 104889213), (3, 69926142), (6, 34963071), (9, 23308714), (11, 19070766), (13, 16136802), (18, 11654357), (22, 9535383), (26, 8068401), (31, 6767046), (33, 6356922), (39, 5378934), (62, 3383523), (66, 3178461), (78, 2689467), (93, 2255682), (99, 2118974), (117, 1792978), (121, 1733706), (143, 1466982), (186, 1127841), (198, 1059487), (234, 896489), (239, 877734), (242, 866853), (279, 751894), (286, 733491), (341, 615186), (363, 577902), (403, 520542), (429, 488994), (478, 438867), (558, 375947), (682, 307593), (717, 292578), (726, 288951), (806, 260271), (858, 244497), (1023, 205062), (1089, 192634), (1209, 173514), (1287, 162998), (1434, 146289), (1573, 133362), (2046, 102531), (2151, 97526), (2178, 96317), (2418, 86757), (2574, 81499), (2629, 79794), (3069, 68354), (3107, 67518), (3146, 66681), (3627, 57838), (3751, 55926), (4302, 48763), (4433, 47322), (4719, 44454), (5258, 39897), (6138, 34177), (6214, 33759), (7254, 28919), (7409, 28314), (7502, 27963), (7887, 26598), (8866, 23661), (9321, 22506), (9438, 22227), (11253, 18642), (13299, 15774), (14157, 14818)]