261275040

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{821}}^1$

素因数の和:872

約数の個数: 288

約数和(自身を含む): 1017905616

約数和(自身を除く): 756630576

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 17, 18, 20, 24, 26, 30, 32, 34, 36, 39, 40, 45, 48, 51, 52, 60, 65, 68, 72, 78, 80, 85, 90, 96, 102, 104, 117, 120, 130, 136, 144, 153, 156, 160, 170, 180, 195, 204, 208, 221, 234, 240, 255, 260, 272, 288, 306, 312, 340, 360, 390, 408, 416, 442, 468, 480, 510, 520, 544, 585, 612, 624, 663, 680, 720, 765, 780, 816, 821, 884, 936, 1020, 1040, 1105, 1170, 1224, 1248, 1326, 1360, 1440, 1530, 1560, 1632, 1642, 1768, 1872, 1989, 2040, 2080, 2210, 2340, 2448, 2463, 2652, 2720, 3060, 3120, 3284, 3315, 3536, 3744, 3978, 4080, 4105, 4420, 4680, 4896, 4926, 5304, 6120, 6240, 6568, 6630, 7072, 7389, 7956, 8160, 8210, 8840, 9360, 9852, 9945, 10608, 10673, 12240, 12315, 13136, 13260, 13957, 14778, 15912, 16420, 17680, 18720, 19704, 19890, 21216, 21346, 24480, 24630, 26272, 26520, 27914, 29556, 31824, 32019, 32840, 35360, 36945, 39408, 39780, 41871, 42692, 49260, 53040, 53365, 55828, 59112, 63648, 64038, 65680, 69785, 73890, 78816, 79560, 83742, 85384, 96057, 98520, 106080, 106730, 111656, 118224, 125613, 128076, 131360, 139570, 147780, 159120, 160095, 167484, 170768, 181441, 192114, 197040, 209355, 213460, 223312, 236448, 251226, 256152, 279140, 295560, 318240, 320190, 334968, 341536, 362882, 384228, 394080, 418710, 426920, 446624, 480285, 502452, 512304, 544323, 558280, 591120, 628065, 640380, 669936, 725764, 768456, 837420, 853840, 907205, 960570, 1004904, 1024608, 1088646, 1116560, 1182240, 1256130, 1280760, 1339872, 1451528, 1536912, 1632969, 1674840, 1707680, 1814410, 1921140, 2009808, 2177292, 2233120, 2512260, 2561520, 2721615, 2903056, 3073824, 3265938, 3349680, 3628820, 3842280, 4019616, 4354584, 5024520, 5123040, 5443230, 5806112, 6531876, 6699360, 7257640, 7684560, 8164845, 8709168, 10049040, 10886460, 13063752, 14515280, 15369120, 16329690, 17418336, 20098080, 21772920, 26127504, 29030560, 32659380, 43545840, 52255008, 65318760, 87091680, 130637520, 261275040]

約数ペア:

[(1, 261275040), (2, 130637520), (3, 87091680), (4, 65318760), (5, 52255008), (6, 43545840), (8, 32659380), (9, 29030560), (10, 26127504), (12, 21772920), (13, 20098080), (15, 17418336), (16, 16329690), (17, 15369120), (18, 14515280), (20, 13063752), (24, 10886460), (26, 10049040), (30, 8709168), (32, 8164845), (34, 7684560), (36, 7257640), (39, 6699360), (40, 6531876), (45, 5806112), (48, 5443230), (51, 5123040), (52, 5024520), (60, 4354584), (65, 4019616), (68, 3842280), (72, 3628820), (78, 3349680), (80, 3265938), (85, 3073824), (90, 2903056), (96, 2721615), (102, 2561520), (104, 2512260), (117, 2233120), (120, 2177292), (130, 2009808), (136, 1921140), (144, 1814410), (153, 1707680), (156, 1674840), (160, 1632969), (170, 1536912), (180, 1451528), (195, 1339872), (204, 1280760), (208, 1256130), (221, 1182240), (234, 1116560), (240, 1088646), (255, 1024608), (260, 1004904), (272, 960570), (288, 907205), (306, 853840), (312, 837420), (340, 768456), (360, 725764), (390, 669936), (408, 640380), (416, 628065), (442, 591120), (468, 558280), (480, 544323), (510, 512304), (520, 502452), (544, 480285), (585, 446624), (612, 426920), (624, 418710), (663, 394080), (680, 384228), (720, 362882), (765, 341536), (780, 334968), (816, 320190), (821, 318240), (884, 295560), (936, 279140), (1020, 256152), (1040, 251226), (1105, 236448), (1170, 223312), (1224, 213460), (1248, 209355), (1326, 197040), (1360, 192114), (1440, 181441), (1530, 170768), (1560, 167484), (1632, 160095), (1642, 159120), (1768, 147780), (1872, 139570), (1989, 131360), (2040, 128076), (2080, 125613), (2210, 118224), (2340, 111656), (2448, 106730), (2463, 106080), (2652, 98520), (2720, 96057), (3060, 85384), (3120, 83742), (3284, 79560), (3315, 78816), (3536, 73890), (3744, 69785), (3978, 65680), (4080, 64038), (4105, 63648), (4420, 59112), (4680, 55828), (4896, 53365), (4926, 53040), (5304, 49260), (6120, 42692), (6240, 41871), (6568, 39780), (6630, 39408), (7072, 36945), (7389, 35360), (7956, 32840), (8160, 32019), (8210, 31824), (8840, 29556), (9360, 27914), (9852, 26520), (9945, 26272), (10608, 24630), (10673, 24480), (12240, 21346), (12315, 21216), (13136, 19890), (13260, 19704), (13957, 18720), (14778, 17680), (15912, 16420)]