861218640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{991}}^1$

素因数の和:1098

約数の個数: 240

約数和(自身を含む): 3108658176

約数和(自身を除く): 2247439536

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 34, 36, 40, 45, 48, 51, 60, 68, 71, 72, 80, 85, 90, 102, 120, 136, 142, 144, 153, 170, 180, 204, 213, 240, 255, 272, 284, 306, 340, 355, 360, 408, 426, 510, 568, 612, 639, 680, 710, 720, 765, 816, 852, 991, 1020, 1065, 1136, 1207, 1224, 1278, 1360, 1420, 1530, 1704, 1982, 2040, 2130, 2414, 2448, 2556, 2840, 2973, 3060, 3195, 3408, 3621, 3964, 4080, 4260, 4828, 4955, 5112, 5680, 5946, 6035, 6120, 6390, 7242, 7928, 8520, 8919, 9656, 9910, 10224, 10863, 11892, 12070, 12240, 12780, 14484, 14865, 15856, 16847, 17040, 17838, 18105, 19312, 19820, 21726, 23784, 24140, 25560, 28968, 29730, 33694, 35676, 36210, 39640, 43452, 44595, 47568, 48280, 50541, 51120, 54315, 57936, 59460, 67388, 70361, 71352, 72420, 79280, 84235, 86904, 89190, 96560, 101082, 108630, 118920, 134776, 140722, 142704, 144840, 151623, 168470, 173808, 178380, 202164, 211083, 217260, 237840, 252705, 269552, 281444, 289680, 303246, 336940, 351805, 356760, 404328, 422166, 434520, 505410, 562888, 606492, 633249, 673880, 703610, 713520, 758115, 808656, 844332, 869040, 1010820, 1055415, 1125776, 1196137, 1212984, 1266498, 1347760, 1407220, 1516230, 1688664, 2021640, 2110830, 2392274, 2425968, 2532996, 2814440, 3032460, 3166245, 3377328, 3588411, 4043280, 4221660, 4784548, 5065992, 5628880, 5980685, 6064920, 6332490, 7176822, 8443320, 9569096, 10131984, 10765233, 11961370, 12129840, 12664980, 14353644, 16886640, 17942055, 19138192, 21530466, 23922740, 25329960, 28707288, 35884110, 43060932, 47845480, 50659920, 53826165, 57414576, 71768220, 86121864, 95690960, 107652330, 143536440, 172243728, 215304660, 287072880, 430609320, 861218640]

約数ペア:

[(1, 861218640), (2, 430609320), (3, 287072880), (4, 215304660), (5, 172243728), (6, 143536440), (8, 107652330), (9, 95690960), (10, 86121864), (12, 71768220), (15, 57414576), (16, 53826165), (17, 50659920), (18, 47845480), (20, 43060932), (24, 35884110), (30, 28707288), (34, 25329960), (36, 23922740), (40, 21530466), (45, 19138192), (48, 17942055), (51, 16886640), (60, 14353644), (68, 12664980), (71, 12129840), (72, 11961370), (80, 10765233), (85, 10131984), (90, 9569096), (102, 8443320), (120, 7176822), (136, 6332490), (142, 6064920), (144, 5980685), (153, 5628880), (170, 5065992), (180, 4784548), (204, 4221660), (213, 4043280), (240, 3588411), (255, 3377328), (272, 3166245), (284, 3032460), (306, 2814440), (340, 2532996), (355, 2425968), (360, 2392274), (408, 2110830), (426, 2021640), (510, 1688664), (568, 1516230), (612, 1407220), (639, 1347760), (680, 1266498), (710, 1212984), (720, 1196137), (765, 1125776), (816, 1055415), (852, 1010820), (991, 869040), (1020, 844332), (1065, 808656), (1136, 758115), (1207, 713520), (1224, 703610), (1278, 673880), (1360, 633249), (1420, 606492), (1530, 562888), (1704, 505410), (1982, 434520), (2040, 422166), (2130, 404328), (2414, 356760), (2448, 351805), (2556, 336940), (2840, 303246), (2973, 289680), (3060, 281444), (3195, 269552), (3408, 252705), (3621, 237840), (3964, 217260), (4080, 211083), (4260, 202164), (4828, 178380), (4955, 173808), (5112, 168470), (5680, 151623), (5946, 144840), (6035, 142704), (6120, 140722), (6390, 134776), (7242, 118920), (7928, 108630), (8520, 101082), (8919, 96560), (9656, 89190), (9910, 86904), (10224, 84235), (10863, 79280), (11892, 72420), (12070, 71352), (12240, 70361), (12780, 67388), (14484, 59460), (14865, 57936), (15856, 54315), (16847, 51120), (17040, 50541), (17838, 48280), (18105, 47568), (19312, 44595), (19820, 43452), (21726, 39640), (23784, 36210), (24140, 35676), (25560, 33694), (28968, 29730)]