1280595840

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{617}}^1$

素因数の和:709

約数の個数: 256

約数和(自身を含む): 4357048320

約数和(自身を除く): 3076452480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 47, 48, 60, 64, 69, 80, 92, 94, 96, 115, 120, 128, 138, 141, 160, 184, 188, 192, 230, 235, 240, 276, 282, 320, 345, 368, 376, 384, 460, 470, 480, 552, 564, 617, 640, 690, 705, 736, 752, 920, 940, 960, 1081, 1104, 1128, 1234, 1380, 1410, 1472, 1504, 1840, 1851, 1880, 1920, 2162, 2208, 2256, 2468, 2760, 2820, 2944, 3008, 3085, 3243, 3680, 3702, 3760, 4324, 4416, 4512, 4936, 5405, 5520, 5640, 6016, 6170, 6486, 7360, 7404, 7520, 8648, 8832, 9024, 9255, 9872, 10810, 11040, 11280, 12340, 12972, 14191, 14720, 14808, 15040, 16215, 17296, 18048, 18510, 19744, 21620, 22080, 22560, 24680, 25944, 28382, 28999, 29616, 30080, 32430, 34592, 37020, 39488, 42573, 43240, 44160, 45120, 49360, 51888, 56764, 57998, 59232, 64860, 69184, 70955, 74040, 78976, 85146, 86480, 86997, 90240, 98720, 103776, 113528, 115996, 118464, 129720, 138368, 141910, 144995, 148080, 170292, 172960, 173994, 197440, 207552, 212865, 227056, 231992, 236928, 259440, 283820, 289990, 296160, 340584, 345920, 347988, 394880, 415104, 425730, 434985, 454112, 463984, 518880, 567640, 579980, 592320, 666977, 681168, 691840, 695976, 851460, 869970, 908224, 927968, 1037760, 1135280, 1159960, 1184640, 1333954, 1362336, 1391952, 1702920, 1739940, 1816448, 1855936, 2000931, 2075520, 2270560, 2319920, 2667908, 2724672, 2783904, 3334885, 3405840, 3479880, 3711872, 4001862, 4541120, 4639840, 5335816, 5449344, 5567808, 6669770, 6811680, 6959760, 8003724, 9082240, 9279680, 10004655, 10671632, 11135616, 13339540, 13623360, 13919520, 16007448, 18559360, 20009310, 21343264, 26679080, 27246720, 27839040, 32014896, 40018620, 42686528, 53358160, 55678080, 64029792, 80037240, 85373056, 106716320, 128059584, 160074480, 213432640, 256119168, 320148960, 426865280, 640297920, 1280595840]

約数ペア:

[(1, 1280595840), (2, 640297920), (3, 426865280), (4, 320148960), (5, 256119168), (6, 213432640), (8, 160074480), (10, 128059584), (12, 106716320), (15, 85373056), (16, 80037240), (20, 64029792), (23, 55678080), (24, 53358160), (30, 42686528), (32, 40018620), (40, 32014896), (46, 27839040), (47, 27246720), (48, 26679080), (60, 21343264), (64, 20009310), (69, 18559360), (80, 16007448), (92, 13919520), (94, 13623360), (96, 13339540), (115, 11135616), (120, 10671632), (128, 10004655), (138, 9279680), (141, 9082240), (160, 8003724), (184, 6959760), (188, 6811680), (192, 6669770), (230, 5567808), (235, 5449344), (240, 5335816), (276, 4639840), (282, 4541120), (320, 4001862), (345, 3711872), (368, 3479880), (376, 3405840), (384, 3334885), (460, 2783904), (470, 2724672), (480, 2667908), (552, 2319920), (564, 2270560), (617, 2075520), (640, 2000931), (690, 1855936), (705, 1816448), (736, 1739940), (752, 1702920), (920, 1391952), (940, 1362336), (960, 1333954), (1081, 1184640), (1104, 1159960), (1128, 1135280), (1234, 1037760), (1380, 927968), (1410, 908224), (1472, 869970), (1504, 851460), (1840, 695976), (1851, 691840), (1880, 681168), (1920, 666977), (2162, 592320), (2208, 579980), (2256, 567640), (2468, 518880), (2760, 463984), (2820, 454112), (2944, 434985), (3008, 425730), (3085, 415104), (3243, 394880), (3680, 347988), (3702, 345920), (3760, 340584), (4324, 296160), (4416, 289990), (4512, 283820), (4936, 259440), (5405, 236928), (5520, 231992), (5640, 227056), (6016, 212865), (6170, 207552), (6486, 197440), (7360, 173994), (7404, 172960), (7520, 170292), (8648, 148080), (8832, 144995), (9024, 141910), (9255, 138368), (9872, 129720), (10810, 118464), (11040, 115996), (11280, 113528), (12340, 103776), (12972, 98720), (14191, 90240), (14720, 86997), (14808, 86480), (15040, 85146), (16215, 78976), (17296, 74040), (18048, 70955), (18510, 69184), (19744, 64860), (21620, 59232), (22080, 57998), (22560, 56764), (24680, 51888), (25944, 49360), (28382, 45120), (28999, 44160), (29616, 43240), (30080, 42573), (32430, 39488), (34592, 37020)]