21499751520

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{3623}}^1$

素因数の和:3974

約数の個数: 288

約数和(自身を含む): 79282711872

約数和(自身を除く): 57782960352

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 96, 104, 117, 120, 130, 144, 156, 160, 180, 195, 208, 234, 240, 260, 288, 312, 317, 360, 390, 416, 468, 480, 520, 585, 624, 634, 720, 780, 936, 951, 1040, 1170, 1248, 1268, 1440, 1560, 1585, 1872, 1902, 2080, 2340, 2536, 2853, 3120, 3170, 3623, 3744, 3804, 4121, 4680, 4755, 5072, 5706, 6240, 6340, 7246, 7608, 8242, 9360, 9510, 10144, 10869, 11412, 12363, 12680, 14265, 14492, 15216, 16484, 18115, 18720, 19020, 20605, 21738, 22824, 24726, 25360, 28530, 28984, 30432, 32607, 32968, 36230, 37089, 38040, 41210, 43476, 45648, 47099, 49452, 50720, 54345, 57060, 57968, 61815, 65214, 65936, 72460, 74178, 76080, 82420, 86952, 91296, 94198, 98904, 108690, 114120, 115936, 123630, 130428, 131872, 141297, 144920, 148356, 152160, 163035, 164840, 173904, 185445, 188396, 197808, 217380, 228240, 235495, 247260, 260856, 282594, 289840, 296712, 326070, 329680, 347808, 370890, 376792, 395616, 423891, 434760, 456480, 470990, 494520, 521712, 565188, 579680, 593424, 652140, 659360, 706485, 741780, 753584, 847782, 869520, 941980, 989040, 1043424, 1130376, 1148491, 1186848, 1304280, 1412970, 1483560, 1507168, 1695564, 1739040, 1883960, 1978080, 2119455, 2260752, 2296982, 2608560, 2825940, 2967120, 3391128, 3445473, 3767920, 4238910, 4521504, 4593964, 5217120, 5651880, 5742455, 5934240, 6782256, 6890946, 7535840, 8477820, 9187928, 10336419, 11303760, 11484910, 13564512, 13781892, 14930383, 16955640, 17227365, 18375856, 20672838, 22607520, 22969820, 27563784, 29860766, 33911280, 34454730, 36751712, 41345676, 44791149, 45939640, 51682095, 55127568, 59721532, 67822560, 68909460, 74651915, 82691352, 89582298, 91879280, 103364190, 110255136, 119443064, 134373447, 137818920, 149303830, 165382704, 179164596, 183758560, 206728380, 223955745, 238886128, 268746894, 275637840, 298607660, 330765408, 358329192, 413456760, 447911490, 477772256, 537493788, 551275680, 597215320, 671867235, 716658384, 826913520, 895822980, 1074987576, 1194430640, 1343734470, 1433316768, 1653827040, 1791645960, 2149975152, 2388861280, 2687468940, 3583291920, 4299950304, 5374937880, 7166583840, 10749875760, 21499751520]

約数ペア:

[(1, 21499751520), (2, 10749875760), (3, 7166583840), (4, 5374937880), (5, 4299950304), (6, 3583291920), (8, 2687468940), (9, 2388861280), (10, 2149975152), (12, 1791645960), (13, 1653827040), (15, 1433316768), (16, 1343734470), (18, 1194430640), (20, 1074987576), (24, 895822980), (26, 826913520), (30, 716658384), (32, 671867235), (36, 597215320), (39, 551275680), (40, 537493788), (45, 477772256), (48, 447911490), (52, 413456760), (60, 358329192), (65, 330765408), (72, 298607660), (78, 275637840), (80, 268746894), (90, 238886128), (96, 223955745), (104, 206728380), (117, 183758560), (120, 179164596), (130, 165382704), (144, 149303830), (156, 137818920), (160, 134373447), (180, 119443064), (195, 110255136), (208, 103364190), (234, 91879280), (240, 89582298), (260, 82691352), (288, 74651915), (312, 68909460), (317, 67822560), (360, 59721532), (390, 55127568), (416, 51682095), (468, 45939640), (480, 44791149), (520, 41345676), (585, 36751712), (624, 34454730), (634, 33911280), (720, 29860766), (780, 27563784), (936, 22969820), (951, 22607520), (1040, 20672838), (1170, 18375856), (1248, 17227365), (1268, 16955640), (1440, 14930383), (1560, 13781892), (1585, 13564512), (1872, 11484910), (1902, 11303760), (2080, 10336419), (2340, 9187928), (2536, 8477820), (2853, 7535840), (3120, 6890946), (3170, 6782256), (3623, 5934240), (3744, 5742455), (3804, 5651880), (4121, 5217120), (4680, 4593964), (4755, 4521504), (5072, 4238910), (5706, 3767920), (6240, 3445473), (6340, 3391128), (7246, 2967120), (7608, 2825940), (8242, 2608560), (9360, 2296982), (9510, 2260752), (10144, 2119455), (10869, 1978080), (11412, 1883960), (12363, 1739040), (12680, 1695564), (14265, 1507168), (14492, 1483560), (15216, 1412970), (16484, 1304280), (18115, 1186848), (18720, 1148491), (19020, 1130376), (20605, 1043424), (21738, 989040), (22824, 941980), (24726, 869520), (25360, 847782), (28530, 753584), (28984, 741780), (30432, 706485), (32607, 659360), (32968, 652140), (36230, 593424), (37089, 579680), (38040, 565188), (41210, 521712), (43476, 494520), (45648, 470990), (47099, 456480), (49452, 434760), (50720, 423891), (54345, 395616), (57060, 376792), (57968, 370890), (61815, 347808), (65214, 329680), (65936, 326070), (72460, 296712), (74178, 289840), (76080, 282594), (82420, 260856), (86952, 247260), (91296, 235495), (94198, 228240), (98904, 217380), (108690, 197808), (114120, 188396), (115936, 185445), (123630, 173904), (130428, 164840), (131872, 163035), (141297, 152160), (144920, 148356)]