261593748

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:159

約数の個数: 216

約数和(自身を含む): 788686080

約数和(自身を除く): 527092332

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 31, 36, 38, 39, 52, 57, 62, 73, 76, 78, 93, 114, 117, 124, 146, 156, 169, 171, 186, 219, 228, 234, 247, 279, 292, 338, 342, 372, 403, 438, 468, 494, 507, 558, 589, 657, 676, 684, 741, 806, 876, 949, 988, 1014, 1116, 1178, 1209, 1314, 1387, 1482, 1521, 1612, 1767, 1898, 2028, 2223, 2263, 2356, 2418, 2628, 2774, 2847, 2964, 3042, 3211, 3534, 3627, 3796, 4161, 4446, 4526, 4836, 5239, 5301, 5548, 5694, 6084, 6422, 6789, 7068, 7254, 7657, 8322, 8541, 8892, 9052, 9633, 10478, 10602, 11388, 12337, 12483, 12844, 13578, 14508, 15314, 15717, 16644, 17082, 18031, 19266, 20367, 20956, 21204, 22971, 24674, 24966, 27156, 28899, 29419, 30628, 31434, 34164, 36062, 37011, 38532, 40734, 42997, 45942, 47151, 49348, 49932, 54093, 57798, 58838, 62868, 68913, 72124, 74022, 81468, 85994, 88257, 91884, 94302, 99541, 108186, 111033, 115596, 117676, 128991, 137826, 148044, 162279, 171988, 176514, 188604, 199082, 216372, 222066, 234403, 257982, 264771, 275652, 298623, 324558, 353028, 382447, 386973, 398164, 444132, 468806, 515964, 529542, 558961, 597246, 649116, 703209, 764894, 773946, 895869, 937612, 1059084, 1117922, 1147341, 1194492, 1406418, 1529788, 1547892, 1676883, 1791738, 2109627, 2235844, 2294682, 2812836, 3353766, 3442023, 3583476, 4219254, 4589364, 5030649, 6707532, 6884046, 7266493, 8438508, 10061298, 13768092, 14532986, 20122596, 21799479, 29065972, 43598958, 65398437, 87197916, 130796874, 261593748]

約数ペア:

[(1, 261593748), (2, 130796874), (3, 87197916), (4, 65398437), (6, 43598958), (9, 29065972), (12, 21799479), (13, 20122596), (18, 14532986), (19, 13768092), (26, 10061298), (31, 8438508), (36, 7266493), (38, 6884046), (39, 6707532), (52, 5030649), (57, 4589364), (62, 4219254), (73, 3583476), (76, 3442023), (78, 3353766), (93, 2812836), (114, 2294682), (117, 2235844), (124, 2109627), (146, 1791738), (156, 1676883), (169, 1547892), (171, 1529788), (186, 1406418), (219, 1194492), (228, 1147341), (234, 1117922), (247, 1059084), (279, 937612), (292, 895869), (338, 773946), (342, 764894), (372, 703209), (403, 649116), (438, 597246), (468, 558961), (494, 529542), (507, 515964), (558, 468806), (589, 444132), (657, 398164), (676, 386973), (684, 382447), (741, 353028), (806, 324558), (876, 298623), (949, 275652), (988, 264771), (1014, 257982), (1116, 234403), (1178, 222066), (1209, 216372), (1314, 199082), (1387, 188604), (1482, 176514), (1521, 171988), (1612, 162279), (1767, 148044), (1898, 137826), (2028, 128991), (2223, 117676), (2263, 115596), (2356, 111033), (2418, 108186), (2628, 99541), (2774, 94302), (2847, 91884), (2964, 88257), (3042, 85994), (3211, 81468), (3534, 74022), (3627, 72124), (3796, 68913), (4161, 62868), (4446, 58838), (4526, 57798), (4836, 54093), (5239, 49932), (5301, 49348), (5548, 47151), (5694, 45942), (6084, 42997), (6422, 40734), (6789, 38532), (7068, 37011), (7254, 36062), (7657, 34164), (8322, 31434), (8541, 30628), (8892, 29419), (9052, 28899), (9633, 27156), (10478, 24966), (10602, 24674), (11388, 22971), (12337, 21204), (12483, 20956), (12844, 20367), (13578, 19266), (14508, 18031), (15314, 17082), (15717, 16644)]