261253440

素因数分解:

$2^6\times 3^2\times 5^1\times 7^1\times {\mathrm{12959}}^1$

素因数の和:12989

約数の個数: 168

約数和(自身を含む): 1027054080

約数和(自身を除く): 765800640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 280, 288, 315, 320, 336, 360, 420, 448, 480, 504, 560, 576, 630, 672, 720, 840, 960, 1008, 1120, 1260, 1344, 1440, 1680, 2016, 2240, 2520, 2880, 3360, 4032, 5040, 6720, 10080, 12959, 20160, 25918, 38877, 51836, 64795, 77754, 90713, 103672, 116631, 129590, 155508, 181426, 194385, 207344, 233262, 259180, 272139, 311016, 362852, 388770, 414688, 453565, 466524, 518360, 544278, 583155, 622032, 725704, 777540, 816417, 829376, 907130, 933048, 1036720, 1088556, 1166310, 1244064, 1360695, 1451408, 1555080, 1632834, 1814260, 1866096, 2073440, 2177112, 2332620, 2488128, 2721390, 2902816, 3110160, 3265668, 3628520, 3732192, 4082085, 4146880, 4354224, 4665240, 5442780, 5805632, 6220320, 6531336, 7257040, 7464384, 8164170, 8708448, 9330480, 10885560, 12440640, 13062672, 14514080, 16328340, 17416896, 18660960, 21771120, 26125344, 29028160, 32656680, 37321920, 43542240, 52250688, 65313360, 87084480, 130626720, 261253440]

約数ペア:

[(1, 261253440), (2, 130626720), (3, 87084480), (4, 65313360), (5, 52250688), (6, 43542240), (7, 37321920), (8, 32656680), (9, 29028160), (10, 26125344), (12, 21771120), (14, 18660960), (15, 17416896), (16, 16328340), (18, 14514080), (20, 13062672), (21, 12440640), (24, 10885560), (28, 9330480), (30, 8708448), (32, 8164170), (35, 7464384), (36, 7257040), (40, 6531336), (42, 6220320), (45, 5805632), (48, 5442780), (56, 4665240), (60, 4354224), (63, 4146880), (64, 4082085), (70, 3732192), (72, 3628520), (80, 3265668), (84, 3110160), (90, 2902816), (96, 2721390), (105, 2488128), (112, 2332620), (120, 2177112), (126, 2073440), (140, 1866096), (144, 1814260), (160, 1632834), (168, 1555080), (180, 1451408), (192, 1360695), (210, 1244064), (224, 1166310), (240, 1088556), (252, 1036720), (280, 933048), (288, 907130), (315, 829376), (320, 816417), (336, 777540), (360, 725704), (420, 622032), (448, 583155), (480, 544278), (504, 518360), (560, 466524), (576, 453565), (630, 414688), (672, 388770), (720, 362852), (840, 311016), (960, 272139), (1008, 259180), (1120, 233262), (1260, 207344), (1344, 194385), (1440, 181426), (1680, 155508), (2016, 129590), (2240, 116631), (2520, 103672), (2880, 90713), (3360, 77754), (4032, 64795), (5040, 51836), (6720, 38877), (10080, 25918), (12959, 20160)]