400326080

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{211}}^1$

素因数の和:264

約数の個数: 252

約数和(自身を含む): 1224665064

約数和(自身を除く): 824338984

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 49, 55, 56, 64, 70, 77, 80, 88, 98, 110, 112, 121, 140, 154, 160, 176, 196, 211, 220, 224, 242, 245, 280, 308, 320, 352, 385, 392, 422, 440, 448, 484, 490, 539, 560, 605, 616, 704, 770, 784, 844, 847, 880, 968, 980, 1055, 1078, 1120, 1210, 1232, 1477, 1540, 1568, 1688, 1694, 1760, 1936, 1960, 2110, 2156, 2240, 2321, 2420, 2464, 2695, 2954, 3080, 3136, 3376, 3388, 3520, 3872, 3920, 4220, 4235, 4312, 4642, 4840, 4928, 5390, 5908, 5929, 6160, 6752, 6776, 7385, 7744, 7840, 8440, 8470, 8624, 9284, 9680, 10339, 10780, 11605, 11816, 11858, 12320, 13504, 13552, 14770, 15680, 16247, 16880, 16940, 17248, 18568, 19360, 20678, 21560, 23210, 23632, 23716, 24640, 25531, 27104, 29540, 29645, 32494, 33760, 33880, 34496, 37136, 38720, 41356, 43120, 46420, 47264, 47432, 51062, 51695, 54208, 59080, 59290, 64988, 67520, 67760, 74272, 81235, 82712, 86240, 92840, 94528, 94864, 102124, 103390, 113729, 118160, 118580, 127655, 129976, 135520, 148544, 162470, 165424, 172480, 178717, 185680, 189728, 204248, 206780, 227458, 236320, 237160, 255310, 259952, 271040, 324940, 330848, 357434, 371360, 379456, 408496, 413560, 454916, 472640, 474320, 510620, 519904, 568645, 649880, 661696, 714868, 742720, 816992, 827120, 893585, 909832, 948640, 1021240, 1039808, 1137290, 1251019, 1299760, 1429736, 1633984, 1654240, 1787170, 1819664, 1897280, 2042480, 2274580, 2502038, 2599520, 2859472, 3308480, 3574340, 3639328, 4084960, 4549160, 5004076, 5199040, 5718944, 6255095, 7148680, 7278656, 8169920, 9098320, 10008152, 11437888, 12510190, 14297360, 18196640, 20016304, 25020380, 28594720, 36393280, 40032608, 50040760, 57189440, 80065216, 100081520, 200163040, 400326080]

約数ペア:

[(1, 400326080), (2, 200163040), (4, 100081520), (5, 80065216), (7, 57189440), (8, 50040760), (10, 40032608), (11, 36393280), (14, 28594720), (16, 25020380), (20, 20016304), (22, 18196640), (28, 14297360), (32, 12510190), (35, 11437888), (40, 10008152), (44, 9098320), (49, 8169920), (55, 7278656), (56, 7148680), (64, 6255095), (70, 5718944), (77, 5199040), (80, 5004076), (88, 4549160), (98, 4084960), (110, 3639328), (112, 3574340), (121, 3308480), (140, 2859472), (154, 2599520), (160, 2502038), (176, 2274580), (196, 2042480), (211, 1897280), (220, 1819664), (224, 1787170), (242, 1654240), (245, 1633984), (280, 1429736), (308, 1299760), (320, 1251019), (352, 1137290), (385, 1039808), (392, 1021240), (422, 948640), (440, 909832), (448, 893585), (484, 827120), (490, 816992), (539, 742720), (560, 714868), (605, 661696), (616, 649880), (704, 568645), (770, 519904), (784, 510620), (844, 474320), (847, 472640), (880, 454916), (968, 413560), (980, 408496), (1055, 379456), (1078, 371360), (1120, 357434), (1210, 330848), (1232, 324940), (1477, 271040), (1540, 259952), (1568, 255310), (1688, 237160), (1694, 236320), (1760, 227458), (1936, 206780), (1960, 204248), (2110, 189728), (2156, 185680), (2240, 178717), (2321, 172480), (2420, 165424), (2464, 162470), (2695, 148544), (2954, 135520), (3080, 129976), (3136, 127655), (3376, 118580), (3388, 118160), (3520, 113729), (3872, 103390), (3920, 102124), (4220, 94864), (4235, 94528), (4312, 92840), (4642, 86240), (4840, 82712), (4928, 81235), (5390, 74272), (5908, 67760), (5929, 67520), (6160, 64988), (6752, 59290), (6776, 59080), (7385, 54208), (7744, 51695), (7840, 51062), (8440, 47432), (8470, 47264), (8624, 46420), (9284, 43120), (9680, 41356), (10339, 38720), (10780, 37136), (11605, 34496), (11816, 33880), (11858, 33760), (12320, 32494), (13504, 29645), (13552, 29540), (14770, 27104), (15680, 25531), (16247, 24640), (16880, 23716), (16940, 23632), (17248, 23210), (18568, 21560), (19360, 20678)]