68908320

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1$

素因数の和:449

約数の個数: 240

約数和(自身を含む): 262536120

約数和(自身を除く): 193627800

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, 409, 416, 432, 468, 480, 520, 540, 585, 624, 648, 702, 720, 780, 810, 818, 864, 936, 1040, 1053, 1080, 1170, 1227, 1248, 1296, 1404, 1440, 1560, 1620, 1636, 1755, 1872, 2045, 2080, 2106, 2160, 2340, 2454, 2592, 2808, 3120, 3240, 3272, 3510, 3681, 3744, 4090, 4212, 4320, 4680, 4908, 5265, 5317, 5616, 6135, 6240, 6480, 6544, 7020, 7362, 8180, 8424, 9360, 9816, 10530, 10634, 11043, 11232, 12270, 12960, 13088, 14040, 14724, 15951, 16360, 16848, 18405, 18720, 19632, 21060, 21268, 22086, 24540, 26585, 28080, 29448, 31902, 32720, 33129, 33696, 36810, 39264, 42120, 42536, 44172, 47853, 49080, 53170, 55215, 56160, 58896, 63804, 65440, 66258, 73620, 79755, 84240, 85072, 88344, 95706, 98160, 106340, 110430, 117792, 127608, 132516, 143559, 147240, 159510, 165645, 168480, 170144, 176688, 191412, 196320, 212680, 220860, 239265, 255216, 265032, 287118, 294480, 319020, 331290, 353376, 382824, 425360, 430677, 441720, 478530, 510432, 530064, 574236, 588960, 638040, 662580, 717795, 765648, 850720, 861354, 883440, 957060, 1060128, 1148472, 1276080, 1325160, 1435590, 1531296, 1722708, 1766880, 1914120, 2153385, 2296944, 2552160, 2650320, 2871180, 3445416, 3828240, 4306770, 4593888, 5300640, 5742360, 6890832, 7656480, 8613540, 11484720, 13781664, 17227080, 22969440, 34454160, 68908320]

約数ペア:

[(1, 68908320), (2, 34454160), (3, 22969440), (4, 17227080), (5, 13781664), (6, 11484720), (8, 8613540), (9, 7656480), (10, 6890832), (12, 5742360), (13, 5300640), (15, 4593888), (16, 4306770), (18, 3828240), (20, 3445416), (24, 2871180), (26, 2650320), (27, 2552160), (30, 2296944), (32, 2153385), (36, 1914120), (39, 1766880), (40, 1722708), (45, 1531296), (48, 1435590), (52, 1325160), (54, 1276080), (60, 1148472), (65, 1060128), (72, 957060), (78, 883440), (80, 861354), (81, 850720), (90, 765648), (96, 717795), (104, 662580), (108, 638040), (117, 588960), (120, 574236), (130, 530064), (135, 510432), (144, 478530), (156, 441720), (160, 430677), (162, 425360), (180, 382824), (195, 353376), (208, 331290), (216, 319020), (234, 294480), (240, 287118), (260, 265032), (270, 255216), (288, 239265), (312, 220860), (324, 212680), (351, 196320), (360, 191412), (390, 176688), (405, 170144), (409, 168480), (416, 165645), (432, 159510), (468, 147240), (480, 143559), (520, 132516), (540, 127608), (585, 117792), (624, 110430), (648, 106340), (702, 98160), (720, 95706), (780, 88344), (810, 85072), (818, 84240), (864, 79755), (936, 73620), (1040, 66258), (1053, 65440), (1080, 63804), (1170, 58896), (1227, 56160), (1248, 55215), (1296, 53170), (1404, 49080), (1440, 47853), (1560, 44172), (1620, 42536), (1636, 42120), (1755, 39264), (1872, 36810), (2045, 33696), (2080, 33129), (2106, 32720), (2160, 31902), (2340, 29448), (2454, 28080), (2592, 26585), (2808, 24540), (3120, 22086), (3240, 21268), (3272, 21060), (3510, 19632), (3681, 18720), (3744, 18405), (4090, 16848), (4212, 16360), (4320, 15951), (4680, 14724), (4908, 14040), (5265, 13088), (5317, 12960), (5616, 12270), (6135, 11232), (6240, 11043), (6480, 10634), (6544, 10530), (7020, 9816), (7362, 9360), (8180, 8424)]