251485920

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{409}}^1$

素因数の和:498

約数の個数: 288

約数和(自身を含む): 999311040

約数和(自身を除く): 747825120

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, 61, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 122, 126, 140, 144, 160, 168, 180, 183, 210, 224, 240, 244, 252, 280, 288, 305, 315, 336, 360, 366, 409, 420, 427, 480, 488, 504, 549, 560, 610, 630, 672, 720, 732, 818, 840, 854, 915, 976, 1008, 1098, 1120, 1220, 1227, 1260, 1281, 1440, 1464, 1636, 1680, 1708, 1830, 1952, 2016, 2045, 2135, 2196, 2440, 2454, 2520, 2562, 2745, 2863, 2928, 3272, 3360, 3416, 3660, 3681, 3843, 4090, 4270, 4392, 4880, 4908, 5040, 5124, 5490, 5726, 5856, 6135, 6405, 6544, 6832, 7320, 7362, 7686, 8180, 8540, 8589, 8784, 9760, 9816, 10080, 10248, 10980, 11452, 12270, 12810, 13088, 13664, 14315, 14640, 14724, 15372, 16360, 17080, 17178, 17568, 18405, 19215, 19632, 20496, 21960, 22904, 24540, 24949, 25620, 25767, 28630, 29280, 29448, 30744, 32720, 34160, 34356, 36810, 38430, 39264, 40992, 42945, 43920, 45808, 49080, 49898, 51240, 51534, 57260, 58896, 61488, 65440, 68320, 68712, 73620, 74847, 76860, 85890, 87840, 91616, 98160, 99796, 102480, 103068, 114520, 117792, 122976, 124745, 128835, 137424, 147240, 149694, 153720, 171780, 174643, 196320, 199592, 204960, 206136, 224541, 229040, 249490, 257670, 274848, 294480, 299388, 307440, 343560, 349286, 374235, 399184, 412272, 449082, 458080, 498980, 515340, 523929, 588960, 598776, 614880, 687120, 698572, 748470, 798368, 824544, 873215, 898164, 997960, 1030680, 1047858, 1122705, 1197552, 1374240, 1397144, 1496940, 1571787, 1746430, 1796328, 1995920, 2061360, 2095716, 2245410, 2395104, 2619645, 2794288, 2993880, 3143574, 3492860, 3592656, 3991840, 4122720, 4191432, 4490820, 5239290, 5588576, 5987760, 6287148, 6985720, 7185312, 7858935, 8382864, 8981640, 10478580, 11975520, 12574296, 13971440, 15717870, 16765728, 17963280, 20957160, 25148592, 27942880, 31435740, 35926560, 41914320, 50297184, 62871480, 83828640, 125742960, 251485920]

約数ペア:

[(1, 251485920), (2, 125742960), (3, 83828640), (4, 62871480), (5, 50297184), (6, 41914320), (7, 35926560), (8, 31435740), (9, 27942880), (10, 25148592), (12, 20957160), (14, 17963280), (15, 16765728), (16, 15717870), (18, 13971440), (20, 12574296), (21, 11975520), (24, 10478580), (28, 8981640), (30, 8382864), (32, 7858935), (35, 7185312), (36, 6985720), (40, 6287148), (42, 5987760), (45, 5588576), (48, 5239290), (56, 4490820), (60, 4191432), (61, 4122720), (63, 3991840), (70, 3592656), (72, 3492860), (80, 3143574), (84, 2993880), (90, 2794288), (96, 2619645), (105, 2395104), (112, 2245410), (120, 2095716), (122, 2061360), (126, 1995920), (140, 1796328), (144, 1746430), (160, 1571787), (168, 1496940), (180, 1397144), (183, 1374240), (210, 1197552), (224, 1122705), (240, 1047858), (244, 1030680), (252, 997960), (280, 898164), (288, 873215), (305, 824544), (315, 798368), (336, 748470), (360, 698572), (366, 687120), (409, 614880), (420, 598776), (427, 588960), (480, 523929), (488, 515340), (504, 498980), (549, 458080), (560, 449082), (610, 412272), (630, 399184), (672, 374235), (720, 349286), (732, 343560), (818, 307440), (840, 299388), (854, 294480), (915, 274848), (976, 257670), (1008, 249490), (1098, 229040), (1120, 224541), (1220, 206136), (1227, 204960), (1260, 199592), (1281, 196320), (1440, 174643), (1464, 171780), (1636, 153720), (1680, 149694), (1708, 147240), (1830, 137424), (1952, 128835), (2016, 124745), (2045, 122976), (2135, 117792), (2196, 114520), (2440, 103068), (2454, 102480), (2520, 99796), (2562, 98160), (2745, 91616), (2863, 87840), (2928, 85890), (3272, 76860), (3360, 74847), (3416, 73620), (3660, 68712), (3681, 68320), (3843, 65440), (4090, 61488), (4270, 58896), (4392, 57260), (4880, 51534), (4908, 51240), (5040, 49898), (5124, 49080), (5490, 45808), (5726, 43920), (5856, 42945), (6135, 40992), (6405, 39264), (6544, 38430), (6832, 36810), (7320, 34356), (7362, 34160), (7686, 32720), (8180, 30744), (8540, 29448), (8589, 29280), (8784, 28630), (9760, 25767), (9816, 25620), (10080, 24949), (10248, 24540), (10980, 22904), (11452, 21960), (12270, 20496), (12810, 19632), (13088, 19215), (13664, 18405), (14315, 17568), (14640, 17178), (14724, 17080), (15372, 16360)]