1291781120

素因数分解:

$2^{10}\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{271}}^1$

素因数の和:329

約数の個数: 264

約数和(自身を含む): 3808402560

約数和(自身を除く): 2516621440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 49, 56, 64, 70, 76, 80, 95, 98, 112, 128, 133, 140, 152, 160, 190, 196, 224, 245, 256, 266, 271, 280, 304, 320, 380, 392, 448, 490, 512, 532, 542, 560, 608, 640, 665, 760, 784, 896, 931, 980, 1024, 1064, 1084, 1120, 1216, 1280, 1330, 1355, 1520, 1568, 1792, 1862, 1897, 1960, 2128, 2168, 2240, 2432, 2560, 2660, 2710, 3040, 3136, 3584, 3724, 3794, 3920, 4256, 4336, 4480, 4655, 4864, 5120, 5149, 5320, 5420, 6080, 6272, 7168, 7448, 7588, 7840, 8512, 8672, 8960, 9310, 9485, 9728, 10298, 10640, 10840, 12160, 12544, 13279, 14896, 15176, 15680, 17024, 17344, 17920, 18620, 18970, 19456, 20596, 21280, 21680, 24320, 25088, 25745, 26558, 29792, 30352, 31360, 34048, 34688, 35840, 36043, 37240, 37940, 41192, 42560, 43360, 48640, 50176, 51490, 53116, 59584, 60704, 62720, 66395, 68096, 69376, 72086, 74480, 75880, 82384, 85120, 86720, 97280, 102980, 106232, 119168, 121408, 125440, 132790, 136192, 138752, 144172, 148960, 151760, 164768, 170240, 173440, 180215, 205960, 212464, 238336, 242816, 250880, 252301, 265580, 277504, 288344, 297920, 303520, 329536, 340480, 346880, 360430, 411920, 424928, 476672, 485632, 504602, 531160, 576688, 595840, 607040, 659072, 680960, 693760, 720860, 823840, 849856, 953344, 971264, 1009204, 1062320, 1153376, 1191680, 1214080, 1261505, 1318144, 1387520, 1441720, 1647680, 1699712, 1942528, 2018408, 2124640, 2306752, 2383360, 2428160, 2523010, 2636288, 2883440, 3295360, 3399424, 4036816, 4249280, 4613504, 4766720, 4856320, 5046020, 5272576, 5766880, 6590720, 6798848, 8073632, 8498560, 9227008, 9712640, 10092040, 11533760, 13181440, 13597696, 16147264, 16997120, 18454016, 20184080, 23067520, 26362880, 32294528, 33994240, 36908032, 40368160, 46135040, 64589056, 67988480, 80736320, 92270080, 129178112, 161472640, 184540160, 258356224, 322945280, 645890560, 1291781120]

約数ペア:

[(1, 1291781120), (2, 645890560), (4, 322945280), (5, 258356224), (7, 184540160), (8, 161472640), (10, 129178112), (14, 92270080), (16, 80736320), (19, 67988480), (20, 64589056), (28, 46135040), (32, 40368160), (35, 36908032), (38, 33994240), (40, 32294528), (49, 26362880), (56, 23067520), (64, 20184080), (70, 18454016), (76, 16997120), (80, 16147264), (95, 13597696), (98, 13181440), (112, 11533760), (128, 10092040), (133, 9712640), (140, 9227008), (152, 8498560), (160, 8073632), (190, 6798848), (196, 6590720), (224, 5766880), (245, 5272576), (256, 5046020), (266, 4856320), (271, 4766720), (280, 4613504), (304, 4249280), (320, 4036816), (380, 3399424), (392, 3295360), (448, 2883440), (490, 2636288), (512, 2523010), (532, 2428160), (542, 2383360), (560, 2306752), (608, 2124640), (640, 2018408), (665, 1942528), (760, 1699712), (784, 1647680), (896, 1441720), (931, 1387520), (980, 1318144), (1024, 1261505), (1064, 1214080), (1084, 1191680), (1120, 1153376), (1216, 1062320), (1280, 1009204), (1330, 971264), (1355, 953344), (1520, 849856), (1568, 823840), (1792, 720860), (1862, 693760), (1897, 680960), (1960, 659072), (2128, 607040), (2168, 595840), (2240, 576688), (2432, 531160), (2560, 504602), (2660, 485632), (2710, 476672), (3040, 424928), (3136, 411920), (3584, 360430), (3724, 346880), (3794, 340480), (3920, 329536), (4256, 303520), (4336, 297920), (4480, 288344), (4655, 277504), (4864, 265580), (5120, 252301), (5149, 250880), (5320, 242816), (5420, 238336), (6080, 212464), (6272, 205960), (7168, 180215), (7448, 173440), (7588, 170240), (7840, 164768), (8512, 151760), (8672, 148960), (8960, 144172), (9310, 138752), (9485, 136192), (9728, 132790), (10298, 125440), (10640, 121408), (10840, 119168), (12160, 106232), (12544, 102980), (13279, 97280), (14896, 86720), (15176, 85120), (15680, 82384), (17024, 75880), (17344, 74480), (17920, 72086), (18620, 69376), (18970, 68096), (19456, 66395), (20596, 62720), (21280, 60704), (21680, 59584), (24320, 53116), (25088, 51490), (25745, 50176), (26558, 48640), (29792, 43360), (30352, 42560), (31360, 41192), (34048, 37940), (34688, 37240), (35840, 36043)]