640804547979

素因数分解:

$3^5\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{619}}^1\times {\mathrm{3583}}^1$

素因数の和:4287

約数の個数: 96

約数和(自身を含む): 1019134771200

約数和(自身を除く): 378330223221

約数列:

[1, 3, 9, 27, 29, 41, 81, 87, 123, 243, 261, 369, 619, 783, 1107, 1189, 1857, 2349, 3321, 3567, 3583, 5571, 7047, 9963, 10701, 10749, 16713, 17951, 25379, 32103, 32247, 50139, 53853, 76137, 96309, 96741, 103907, 146903, 150417, 161559, 228411, 288927, 290223, 311721, 440709, 484677, 685233, 735991, 870669, 935163, 1322127, 1454031, 2055699, 2207973, 2217877, 2805489, 3966381, 4260187, 4362093, 6167097, 6623919, 6653631, 8416467, 11899143, 12780561, 19871757, 19960893, 25249401, 35697429, 38341683, 59615271, 59882679, 64318433, 90932957, 115025049, 178845813, 179648037, 192955299, 272798871, 345075147, 538944111, 578865897, 818396613, 1035225441, 1736597691, 2455189839, 2637055753, 5209793073, 7365569517, 7911167259, 15629379219, 22096708551, 23733501777, 71200505331, 213601515993, 640804547979]

約数ペア:

[(1, 640804547979), (3, 213601515993), (9, 71200505331), (27, 23733501777), (29, 22096708551), (41, 15629379219), (81, 7911167259), (87, 7365569517), (123, 5209793073), (243, 2637055753), (261, 2455189839), (369, 1736597691), (619, 1035225441), (783, 818396613), (1107, 578865897), (1189, 538944111), (1857, 345075147), (2349, 272798871), (3321, 192955299), (3567, 179648037), (3583, 178845813), (5571, 115025049), (7047, 90932957), (9963, 64318433), (10701, 59882679), (10749, 59615271), (16713, 38341683), (17951, 35697429), (25379, 25249401), (32103, 19960893), (32247, 19871757), (50139, 12780561), (53853, 11899143), (76137, 8416467), (96309, 6653631), (96741, 6623919), (103907, 6167097), (146903, 4362093), (150417, 4260187), (161559, 3966381), (228411, 2805489), (288927, 2217877), (290223, 2207973), (311721, 2055699), (440709, 1454031), (484677, 1322127), (685233, 935163), (735991, 870669)]