281237040

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1361}}^1$

素因数の和:1428

約数の個数: 240

約数和(自身を含む): 1106554176

約数和(自身を除く): 825317136

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 41, 42, 45, 48, 56, 60, 63, 70, 72, 80, 82, 84, 90, 105, 112, 120, 123, 126, 140, 144, 164, 168, 180, 205, 210, 240, 246, 252, 280, 287, 315, 328, 336, 360, 369, 410, 420, 492, 504, 560, 574, 615, 630, 656, 720, 738, 820, 840, 861, 984, 1008, 1148, 1230, 1260, 1361, 1435, 1476, 1640, 1680, 1722, 1845, 1968, 2296, 2460, 2520, 2583, 2722, 2870, 2952, 3280, 3444, 3690, 4083, 4305, 4592, 4920, 5040, 5166, 5444, 5740, 5904, 6805, 6888, 7380, 8166, 8610, 9527, 9840, 10332, 10888, 11480, 12249, 12915, 13610, 13776, 14760, 16332, 17220, 19054, 20415, 20664, 21776, 22960, 24498, 25830, 27220, 28581, 29520, 32664, 34440, 38108, 40830, 41328, 47635, 48996, 51660, 54440, 55801, 57162, 61245, 65328, 68880, 76216, 81660, 85743, 95270, 97992, 103320, 108880, 111602, 114324, 122490, 142905, 152432, 163320, 167403, 171486, 190540, 195984, 206640, 223204, 228648, 244980, 279005, 285810, 326640, 334806, 342972, 381080, 390607, 428715, 446408, 457296, 489960, 502209, 558010, 571620, 669612, 685944, 762160, 781214, 837015, 857430, 892816, 979920, 1004418, 1116020, 1143240, 1171821, 1339224, 1371888, 1562428, 1674030, 1714860, 1953035, 2008836, 2232040, 2286480, 2343642, 2511045, 2678448, 3124856, 3348060, 3429720, 3515463, 3906070, 4017672, 4464080, 4687284, 5022090, 5859105, 6249712, 6696120, 6859440, 7030926, 7812140, 8035344, 9374568, 10044180, 11718210, 13392240, 14061852, 15624280, 17577315, 18749136, 20088360, 23436420, 28123704, 31248560, 35154630, 40176720, 46872840, 56247408, 70309260, 93745680, 140618520, 281237040]

約数ペア:

[(1, 281237040), (2, 140618520), (3, 93745680), (4, 70309260), (5, 56247408), (6, 46872840), (7, 40176720), (8, 35154630), (9, 31248560), (10, 28123704), (12, 23436420), (14, 20088360), (15, 18749136), (16, 17577315), (18, 15624280), (20, 14061852), (21, 13392240), (24, 11718210), (28, 10044180), (30, 9374568), (35, 8035344), (36, 7812140), (40, 7030926), (41, 6859440), (42, 6696120), (45, 6249712), (48, 5859105), (56, 5022090), (60, 4687284), (63, 4464080), (70, 4017672), (72, 3906070), (80, 3515463), (82, 3429720), (84, 3348060), (90, 3124856), (105, 2678448), (112, 2511045), (120, 2343642), (123, 2286480), (126, 2232040), (140, 2008836), (144, 1953035), (164, 1714860), (168, 1674030), (180, 1562428), (205, 1371888), (210, 1339224), (240, 1171821), (246, 1143240), (252, 1116020), (280, 1004418), (287, 979920), (315, 892816), (328, 857430), (336, 837015), (360, 781214), (369, 762160), (410, 685944), (420, 669612), (492, 571620), (504, 558010), (560, 502209), (574, 489960), (615, 457296), (630, 446408), (656, 428715), (720, 390607), (738, 381080), (820, 342972), (840, 334806), (861, 326640), (984, 285810), (1008, 279005), (1148, 244980), (1230, 228648), (1260, 223204), (1361, 206640), (1435, 195984), (1476, 190540), (1640, 171486), (1680, 167403), (1722, 163320), (1845, 152432), (1968, 142905), (2296, 122490), (2460, 114324), (2520, 111602), (2583, 108880), (2722, 103320), (2870, 97992), (2952, 95270), (3280, 85743), (3444, 81660), (3690, 76216), (4083, 68880), (4305, 65328), (4592, 61245), (4920, 57162), (5040, 55801), (5166, 54440), (5444, 51660), (5740, 48996), (5904, 47635), (6805, 41328), (6888, 40830), (7380, 38108), (8166, 34440), (8610, 32664), (9527, 29520), (9840, 28581), (10332, 27220), (10888, 25830), (11480, 24498), (12249, 22960), (12915, 21776), (13610, 20664), (13776, 20415), (14760, 19054), (16332, 17220)]