81784080

素因数分解:

$2^4\times 3^5\times 5^1\times 7^1\times {\mathrm{601}}^1$

素因数の和:636

約数の個数: 240

約数和(自身を含む): 326062464

約数和(自身を除く): 244278384

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 81, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 162, 168, 180, 189, 210, 216, 240, 243, 252, 270, 280, 315, 324, 336, 360, 378, 405, 420, 432, 486, 504, 540, 560, 567, 601, 630, 648, 720, 756, 810, 840, 945, 972, 1008, 1080, 1134, 1202, 1215, 1260, 1296, 1512, 1620, 1680, 1701, 1803, 1890, 1944, 2160, 2268, 2404, 2430, 2520, 2835, 3005, 3024, 3240, 3402, 3606, 3780, 3888, 4207, 4536, 4808, 4860, 5040, 5409, 5670, 6010, 6480, 6804, 7212, 7560, 8414, 8505, 9015, 9072, 9616, 9720, 10818, 11340, 12020, 12621, 13608, 14424, 15120, 16227, 16828, 17010, 18030, 19440, 21035, 21636, 22680, 24040, 25242, 27045, 27216, 28848, 32454, 33656, 34020, 36060, 37863, 42070, 43272, 45360, 48080, 48681, 50484, 54090, 63105, 64908, 67312, 68040, 72120, 75726, 81135, 84140, 86544, 97362, 100968, 108180, 113589, 126210, 129816, 136080, 144240, 146043, 151452, 162270, 168280, 189315, 194724, 201936, 216360, 227178, 243405, 252420, 259632, 292086, 302904, 324540, 336560, 340767, 378630, 389448, 432720, 454356, 486810, 504840, 567945, 584172, 605808, 649080, 681534, 730215, 757260, 778896, 908712, 973620, 1009680, 1022301, 1135890, 1168344, 1298160, 1363068, 1460430, 1514520, 1703835, 1817424, 1947240, 2044602, 2271780, 2336688, 2726136, 2920860, 3029040, 3407670, 3894480, 4089204, 4543560, 5111505, 5452272, 5841720, 6815340, 8178408, 9087120, 10223010, 11683440, 13630680, 16356816, 20446020, 27261360, 40892040, 81784080]

約数ペア:

[(1, 81784080), (2, 40892040), (3, 27261360), (4, 20446020), (5, 16356816), (6, 13630680), (7, 11683440), (8, 10223010), (9, 9087120), (10, 8178408), (12, 6815340), (14, 5841720), (15, 5452272), (16, 5111505), (18, 4543560), (20, 4089204), (21, 3894480), (24, 3407670), (27, 3029040), (28, 2920860), (30, 2726136), (35, 2336688), (36, 2271780), (40, 2044602), (42, 1947240), (45, 1817424), (48, 1703835), (54, 1514520), (56, 1460430), (60, 1363068), (63, 1298160), (70, 1168344), (72, 1135890), (80, 1022301), (81, 1009680), (84, 973620), (90, 908712), (105, 778896), (108, 757260), (112, 730215), (120, 681534), (126, 649080), (135, 605808), (140, 584172), (144, 567945), (162, 504840), (168, 486810), (180, 454356), (189, 432720), (210, 389448), (216, 378630), (240, 340767), (243, 336560), (252, 324540), (270, 302904), (280, 292086), (315, 259632), (324, 252420), (336, 243405), (360, 227178), (378, 216360), (405, 201936), (420, 194724), (432, 189315), (486, 168280), (504, 162270), (540, 151452), (560, 146043), (567, 144240), (601, 136080), (630, 129816), (648, 126210), (720, 113589), (756, 108180), (810, 100968), (840, 97362), (945, 86544), (972, 84140), (1008, 81135), (1080, 75726), (1134, 72120), (1202, 68040), (1215, 67312), (1260, 64908), (1296, 63105), (1512, 54090), (1620, 50484), (1680, 48681), (1701, 48080), (1803, 45360), (1890, 43272), (1944, 42070), (2160, 37863), (2268, 36060), (2404, 34020), (2430, 33656), (2520, 32454), (2835, 28848), (3005, 27216), (3024, 27045), (3240, 25242), (3402, 24040), (3606, 22680), (3780, 21636), (3888, 21035), (4207, 19440), (4536, 18030), (4808, 17010), (4860, 16828), (5040, 16227), (5409, 15120), (5670, 14424), (6010, 13608), (6480, 12621), (6804, 12020), (7212, 11340), (7560, 10818), (8414, 9720), (8505, 9616), (9015, 9072)]