261863280

素因数分解:

$2^4\times 3^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1$

素因数の和:306

約数の個数: 400

約数和(自身を含む): 1088930304

約数和(自身を除く): 827067024

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 23, 24, 27, 28, 30, 35, 36, 40, 42, 45, 46, 48, 54, 56, 60, 63, 69, 70, 72, 80, 81, 84, 90, 92, 105, 108, 112, 115, 120, 126, 135, 138, 140, 144, 161, 162, 168, 180, 184, 189, 207, 210, 216, 230, 240, 251, 252, 270, 276, 280, 315, 322, 324, 336, 345, 360, 368, 378, 405, 414, 420, 432, 460, 483, 502, 504, 540, 552, 560, 567, 621, 630, 644, 648, 690, 720, 753, 756, 805, 810, 828, 840, 920, 945, 966, 1004, 1008, 1035, 1080, 1104, 1134, 1242, 1255, 1260, 1288, 1296, 1380, 1449, 1506, 1512, 1610, 1620, 1656, 1680, 1757, 1840, 1863, 1890, 1932, 2008, 2070, 2160, 2259, 2268, 2415, 2484, 2510, 2520, 2576, 2760, 2835, 2898, 3012, 3024, 3105, 3220, 3240, 3312, 3514, 3726, 3765, 3780, 3864, 4016, 4140, 4347, 4518, 4536, 4830, 4968, 5020, 5040, 5271, 5520, 5670, 5773, 5796, 6024, 6210, 6440, 6480, 6777, 7028, 7245, 7452, 7530, 7560, 7728, 8280, 8694, 8785, 9036, 9072, 9315, 9660, 9936, 10040, 10542, 11295, 11340, 11546, 11592, 12048, 12420, 12880, 13041, 13554, 14056, 14490, 14904, 15060, 15120, 15813, 16560, 17319, 17388, 17570, 18072, 18630, 19320, 20080, 20331, 21084, 21735, 22590, 22680, 23092, 23184, 24840, 26082, 26355, 27108, 28112, 28865, 28980, 29808, 30120, 31626, 33885, 34638, 34776, 35140, 36144, 37260, 38640, 40411, 40662, 42168, 43470, 45180, 45360, 46184, 47439, 49680, 51957, 52164, 52710, 54216, 57730, 57960, 60240, 63252, 65205, 67770, 69276, 69552, 70280, 74520, 79065, 80822, 81324, 84336, 86595, 86940, 90360, 92368, 94878, 101655, 103914, 104328, 105420, 108432, 115460, 115920, 121233, 126504, 130410, 135540, 138552, 140560, 142317, 149040, 155871, 158130, 161644, 162648, 173190, 173880, 180720, 189756, 202055, 203310, 207828, 208656, 210840, 230920, 237195, 242466, 253008, 259785, 260820, 271080, 277104, 284634, 311742, 316260, 323288, 325296, 346380, 347760, 363699, 379512, 404110, 406620, 415656, 421680, 461840, 467613, 474390, 484932, 519570, 521640, 542160, 569268, 606165, 623484, 632520, 646576, 692760, 711585, 727398, 759024, 779355, 808220, 813240, 831312, 935226, 948780, 969864, 1039140, 1043280, 1091097, 1138536, 1212330, 1246968, 1265040, 1385520, 1423170, 1454796, 1558710, 1616440, 1626480, 1818495, 1870452, 1897560, 1939728, 2078280, 2182194, 2277072, 2338065, 2424660, 2493936, 2846340, 2909592, 3117420, 3232880, 3273291, 3636990, 3740904, 3795120, 4156560, 4364388, 4676130, 4849320, 5455485, 5692680, 5819184, 6234840, 6546582, 7273980, 7481808, 8728776, 9352260, 9698640, 10910970, 11385360, 12469680, 13093164, 14547960, 16366455, 17457552, 18704520, 21821940, 26186328, 29095920, 32732910, 37409040, 43643880, 52372656, 65465820, 87287760, 130931640, 261863280]

約数ペア:

[(1, 261863280), (2, 130931640), (3, 87287760), (4, 65465820), (5, 52372656), (6, 43643880), (7, 37409040), (8, 32732910), (9, 29095920), (10, 26186328), (12, 21821940), (14, 18704520), (15, 17457552), (16, 16366455), (18, 14547960), (20, 13093164), (21, 12469680), (23, 11385360), (24, 10910970), (27, 9698640), (28, 9352260), (30, 8728776), (35, 7481808), (36, 7273980), (40, 6546582), (42, 6234840), (45, 5819184), (46, 5692680), (48, 5455485), (54, 4849320), (56, 4676130), (60, 4364388), (63, 4156560), (69, 3795120), (70, 3740904), (72, 3636990), (80, 3273291), (81, 3232880), (84, 3117420), (90, 2909592), (92, 2846340), (105, 2493936), (108, 2424660), (112, 2338065), (115, 2277072), (120, 2182194), (126, 2078280), (135, 1939728), (138, 1897560), (140, 1870452), (144, 1818495), (161, 1626480), (162, 1616440), (168, 1558710), (180, 1454796), (184, 1423170), (189, 1385520), (207, 1265040), (210, 1246968), (216, 1212330), (230, 1138536), (240, 1091097), (251, 1043280), (252, 1039140), (270, 969864), (276, 948780), (280, 935226), (315, 831312), (322, 813240), (324, 808220), (336, 779355), (345, 759024), (360, 727398), (368, 711585), (378, 692760), (405, 646576), (414, 632520), (420, 623484), (432, 606165), (460, 569268), (483, 542160), (502, 521640), (504, 519570), (540, 484932), (552, 474390), (560, 467613), (567, 461840), (621, 421680), (630, 415656), (644, 406620), (648, 404110), (690, 379512), (720, 363699), (753, 347760), (756, 346380), (805, 325296), (810, 323288), (828, 316260), (840, 311742), (920, 284634), (945, 277104), (966, 271080), (1004, 260820), (1008, 259785), (1035, 253008), (1080, 242466), (1104, 237195), (1134, 230920), (1242, 210840), (1255, 208656), (1260, 207828), (1288, 203310), (1296, 202055), (1380, 189756), (1449, 180720), (1506, 173880), (1512, 173190), (1610, 162648), (1620, 161644), (1656, 158130), (1680, 155871), (1757, 149040), (1840, 142317), (1863, 140560), (1890, 138552), (1932, 135540), (2008, 130410), (2070, 126504), (2160, 121233), (2259, 115920), (2268, 115460), (2415, 108432), (2484, 105420), (2510, 104328), (2520, 103914), (2576, 101655), (2760, 94878), (2835, 92368), (2898, 90360), (3012, 86940), (3024, 86595), (3105, 84336), (3220, 81324), (3240, 80822), (3312, 79065), (3514, 74520), (3726, 70280), (3765, 69552), (3780, 69276), (3864, 67770), (4016, 65205), (4140, 63252), (4347, 60240), (4518, 57960), (4536, 57730), (4830, 54216), (4968, 52710), (5020, 52164), (5040, 51957), (5271, 49680), (5520, 47439), (5670, 46184), (5773, 45360), (5796, 45180), (6024, 43470), (6210, 42168), (6440, 40662), (6480, 40411), (6777, 38640), (7028, 37260), (7245, 36144), (7452, 35140), (7530, 34776), (7560, 34638), (7728, 33885), (8280, 31626), (8694, 30120), (8785, 29808), (9036, 28980), (9072, 28865), (9315, 28112), (9660, 27108), (9936, 26355), (10040, 26082), (10542, 24840), (11295, 23184), (11340, 23092), (11546, 22680), (11592, 22590), (12048, 21735), (12420, 21084), (12880, 20331), (13041, 20080), (13554, 19320), (14056, 18630), (14490, 18072), (14904, 17570), (15060, 17388), (15120, 17319), (15813, 16560)]