205999920

素因数分解:

$2^4\times 3^2\times 5^1\times 7^2\times {\mathrm{5839}}^1$

素因数の和:5872

約数の個数: 180

約数和(自身を含む): 804903840

約数和(自身を除く): 598903920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 112, 120, 126, 140, 144, 147, 168, 180, 196, 210, 240, 245, 252, 280, 294, 315, 336, 360, 392, 420, 441, 490, 504, 560, 588, 630, 720, 735, 784, 840, 882, 980, 1008, 1176, 1260, 1470, 1680, 1764, 1960, 2205, 2352, 2520, 2940, 3528, 3920, 4410, 5040, 5839, 5880, 7056, 8820, 11678, 11760, 17517, 17640, 23356, 29195, 35034, 35280, 40873, 46712, 52551, 58390, 70068, 81746, 87585, 93424, 105102, 116780, 122619, 140136, 163492, 175170, 204365, 210204, 233560, 245238, 262755, 280272, 286111, 326984, 350340, 367857, 408730, 420408, 467120, 490476, 525510, 572222, 613095, 653968, 700680, 735714, 817460, 840816, 858333, 980952, 1051020, 1144444, 1226190, 1401360, 1430555, 1471428, 1634920, 1716666, 1839285, 1961904, 2102040, 2288888, 2452380, 2574999, 2861110, 2942856, 3269840, 3433332, 3678570, 4204080, 4291665, 4577776, 4904760, 5149998, 5722220, 5885712, 6866664, 7357140, 8583330, 9809520, 10299996, 11444440, 12874995, 13733328, 14714280, 17166660, 20599992, 22888880, 25749990, 29428560, 34333320, 41199984, 51499980, 68666640, 102999960, 205999920]

約数ペア:

[(1, 205999920), (2, 102999960), (3, 68666640), (4, 51499980), (5, 41199984), (6, 34333320), (7, 29428560), (8, 25749990), (9, 22888880), (10, 20599992), (12, 17166660), (14, 14714280), (15, 13733328), (16, 12874995), (18, 11444440), (20, 10299996), (21, 9809520), (24, 8583330), (28, 7357140), (30, 6866664), (35, 5885712), (36, 5722220), (40, 5149998), (42, 4904760), (45, 4577776), (48, 4291665), (49, 4204080), (56, 3678570), (60, 3433332), (63, 3269840), (70, 2942856), (72, 2861110), (80, 2574999), (84, 2452380), (90, 2288888), (98, 2102040), (105, 1961904), (112, 1839285), (120, 1716666), (126, 1634920), (140, 1471428), (144, 1430555), (147, 1401360), (168, 1226190), (180, 1144444), (196, 1051020), (210, 980952), (240, 858333), (245, 840816), (252, 817460), (280, 735714), (294, 700680), (315, 653968), (336, 613095), (360, 572222), (392, 525510), (420, 490476), (441, 467120), (490, 420408), (504, 408730), (560, 367857), (588, 350340), (630, 326984), (720, 286111), (735, 280272), (784, 262755), (840, 245238), (882, 233560), (980, 210204), (1008, 204365), (1176, 175170), (1260, 163492), (1470, 140136), (1680, 122619), (1764, 116780), (1960, 105102), (2205, 93424), (2352, 87585), (2520, 81746), (2940, 70068), (3528, 58390), (3920, 52551), (4410, 46712), (5040, 40873), (5839, 35280), (5880, 35034), (7056, 29195), (8820, 23356), (11678, 17640), (11760, 17517)]