261649440

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1553}}^1$

素因数の和:1593

約数の個数: 240

約数和(自身を含む): 995075928

約数和(自身を除く): 733426488

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 32, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 81, 90, 96, 104, 108, 117, 120, 130, 135, 144, 156, 160, 162, 180, 195, 208, 216, 234, 240, 260, 270, 288, 312, 324, 351, 360, 390, 405, 416, 432, 468, 480, 520, 540, 585, 624, 648, 702, 720, 780, 810, 864, 936, 1040, 1053, 1080, 1170, 1248, 1296, 1404, 1440, 1553, 1560, 1620, 1755, 1872, 2080, 2106, 2160, 2340, 2592, 2808, 3106, 3120, 3240, 3510, 3744, 4212, 4320, 4659, 4680, 5265, 5616, 6212, 6240, 6480, 7020, 7765, 8424, 9318, 9360, 10530, 11232, 12424, 12960, 13977, 14040, 15530, 16848, 18636, 18720, 20189, 21060, 23295, 24848, 27954, 28080, 31060, 33696, 37272, 40378, 41931, 42120, 46590, 49696, 55908, 56160, 60567, 62120, 69885, 74544, 80756, 83862, 84240, 93180, 100945, 111816, 121134, 124240, 125793, 139770, 149088, 161512, 167724, 168480, 181701, 186360, 201890, 209655, 223632, 242268, 248480, 251586, 279540, 302835, 323024, 335448, 363402, 372720, 403780, 419310, 447264, 484536, 503172, 545103, 559080, 605670, 628965, 646048, 670896, 726804, 745440, 807560, 838620, 908505, 969072, 1006344, 1090206, 1118160, 1211340, 1257930, 1341792, 1453608, 1615120, 1635309, 1677240, 1817010, 1938144, 2012688, 2180412, 2236320, 2422680, 2515860, 2725515, 2907216, 3230240, 3270618, 3354480, 3634020, 4025376, 4360824, 4845360, 5031720, 5451030, 5814432, 6541236, 6708960, 7268040, 8176545, 8721648, 9690720, 10063440, 10902060, 13082472, 14536080, 16353090, 17443296, 20126880, 21804120, 26164944, 29072160, 32706180, 43608240, 52329888, 65412360, 87216480, 130824720, 261649440]

約数ペア:

[(1, 261649440), (2, 130824720), (3, 87216480), (4, 65412360), (5, 52329888), (6, 43608240), (8, 32706180), (9, 29072160), (10, 26164944), (12, 21804120), (13, 20126880), (15, 17443296), (16, 16353090), (18, 14536080), (20, 13082472), (24, 10902060), (26, 10063440), (27, 9690720), (30, 8721648), (32, 8176545), (36, 7268040), (39, 6708960), (40, 6541236), (45, 5814432), (48, 5451030), (52, 5031720), (54, 4845360), (60, 4360824), (65, 4025376), (72, 3634020), (78, 3354480), (80, 3270618), (81, 3230240), (90, 2907216), (96, 2725515), (104, 2515860), (108, 2422680), (117, 2236320), (120, 2180412), (130, 2012688), (135, 1938144), (144, 1817010), (156, 1677240), (160, 1635309), (162, 1615120), (180, 1453608), (195, 1341792), (208, 1257930), (216, 1211340), (234, 1118160), (240, 1090206), (260, 1006344), (270, 969072), (288, 908505), (312, 838620), (324, 807560), (351, 745440), (360, 726804), (390, 670896), (405, 646048), (416, 628965), (432, 605670), (468, 559080), (480, 545103), (520, 503172), (540, 484536), (585, 447264), (624, 419310), (648, 403780), (702, 372720), (720, 363402), (780, 335448), (810, 323024), (864, 302835), (936, 279540), (1040, 251586), (1053, 248480), (1080, 242268), (1170, 223632), (1248, 209655), (1296, 201890), (1404, 186360), (1440, 181701), (1553, 168480), (1560, 167724), (1620, 161512), (1755, 149088), (1872, 139770), (2080, 125793), (2106, 124240), (2160, 121134), (2340, 111816), (2592, 100945), (2808, 93180), (3106, 84240), (3120, 83862), (3240, 80756), (3510, 74544), (3744, 69885), (4212, 62120), (4320, 60567), (4659, 56160), (4680, 55908), (5265, 49696), (5616, 46590), (6212, 42120), (6240, 41931), (6480, 40378), (7020, 37272), (7765, 33696), (8424, 31060), (9318, 28080), (9360, 27954), (10530, 24848), (11232, 23295), (12424, 21060), (12960, 20189), (13977, 18720), (14040, 18636), (15530, 16848)]