205319520

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{20369}}^1$

素因数の和:20397

約数の個数: 144

約数和(自身を含む): 800785440

約数和(自身を除く): 595465920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 2016, 2520, 3360, 5040, 10080, 20369, 40738, 61107, 81476, 101845, 122214, 142583, 162952, 183321, 203690, 244428, 285166, 305535, 325904, 366642, 407380, 427749, 488856, 570332, 611070, 651808, 712915, 733284, 814760, 855498, 916605, 977712, 1140664, 1222140, 1283247, 1425830, 1466568, 1629520, 1710996, 1833210, 1955424, 2138745, 2281328, 2444280, 2566494, 2851660, 2933136, 3259040, 3421992, 3666420, 4277490, 4562656, 4888560, 5132988, 5703320, 5866272, 6416235, 6843984, 7332840, 8554980, 9777120, 10265976, 11406640, 12832470, 13687968, 14665680, 17109960, 20531952, 22813280, 25664940, 29331360, 34219920, 41063904, 51329880, 68439840, 102659760, 205319520]

約数ペア:

[(1, 205319520), (2, 102659760), (3, 68439840), (4, 51329880), (5, 41063904), (6, 34219920), (7, 29331360), (8, 25664940), (9, 22813280), (10, 20531952), (12, 17109960), (14, 14665680), (15, 13687968), (16, 12832470), (18, 11406640), (20, 10265976), (21, 9777120), (24, 8554980), (28, 7332840), (30, 6843984), (32, 6416235), (35, 5866272), (36, 5703320), (40, 5132988), (42, 4888560), (45, 4562656), (48, 4277490), (56, 3666420), (60, 3421992), (63, 3259040), (70, 2933136), (72, 2851660), (80, 2566494), (84, 2444280), (90, 2281328), (96, 2138745), (105, 1955424), (112, 1833210), (120, 1710996), (126, 1629520), (140, 1466568), (144, 1425830), (160, 1283247), (168, 1222140), (180, 1140664), (210, 977712), (224, 916605), (240, 855498), (252, 814760), (280, 733284), (288, 712915), (315, 651808), (336, 611070), (360, 570332), (420, 488856), (480, 427749), (504, 407380), (560, 366642), (630, 325904), (672, 305535), (720, 285166), (840, 244428), (1008, 203690), (1120, 183321), (1260, 162952), (1440, 142583), (1680, 122214), (2016, 101845), (2520, 81476), (3360, 61107), (5040, 40738), (10080, 20369)]