217548240

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1423}}^1$

素因数の和:1466

約数の個数: 240

約数和(自身を含む): 845445888

約数和(自身を除く): 627897648

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 48, 49, 52, 56, 60, 65, 70, 78, 80, 84, 91, 98, 104, 105, 112, 120, 130, 140, 147, 156, 168, 182, 195, 196, 208, 210, 240, 245, 260, 273, 280, 294, 312, 336, 364, 390, 392, 420, 455, 490, 520, 546, 560, 588, 624, 637, 728, 735, 780, 784, 840, 910, 980, 1040, 1092, 1176, 1274, 1365, 1423, 1456, 1470, 1560, 1680, 1820, 1911, 1960, 2184, 2352, 2548, 2730, 2846, 2940, 3120, 3185, 3640, 3822, 3920, 4269, 4368, 5096, 5460, 5692, 5880, 6370, 7115, 7280, 7644, 8538, 9555, 9961, 10192, 10920, 11384, 11760, 12740, 14230, 15288, 17076, 18499, 19110, 19922, 21345, 21840, 22768, 25480, 28460, 29883, 30576, 34152, 36998, 38220, 39844, 42690, 49805, 50960, 55497, 56920, 59766, 68304, 69727, 73996, 76440, 79688, 85380, 92495, 99610, 110994, 113840, 119532, 129493, 139454, 147992, 149415, 152880, 159376, 170760, 184990, 199220, 209181, 221988, 239064, 258986, 277485, 278908, 295984, 298830, 341520, 348635, 369980, 388479, 398440, 418362, 443976, 478128, 517972, 554970, 557816, 597660, 647465, 697270, 739960, 776958, 796880, 836724, 887952, 906451, 1035944, 1045905, 1109940, 1115632, 1195320, 1294930, 1394540, 1479920, 1553916, 1673448, 1812902, 1942395, 2071888, 2091810, 2219880, 2390640, 2589860, 2719353, 2789080, 3107832, 3346896, 3625804, 3884790, 4183620, 4439760, 4532255, 5179720, 5438706, 5578160, 6215664, 7251608, 7769580, 8367240, 9064510, 10359440, 10877412, 13596765, 14503216, 15539160, 16734480, 18129020, 21754824, 27193530, 31078320, 36258040, 43509648, 54387060, 72516080, 108774120, 217548240]

約数ペア:

[(1, 217548240), (2, 108774120), (3, 72516080), (4, 54387060), (5, 43509648), (6, 36258040), (7, 31078320), (8, 27193530), (10, 21754824), (12, 18129020), (13, 16734480), (14, 15539160), (15, 14503216), (16, 13596765), (20, 10877412), (21, 10359440), (24, 9064510), (26, 8367240), (28, 7769580), (30, 7251608), (35, 6215664), (39, 5578160), (40, 5438706), (42, 5179720), (48, 4532255), (49, 4439760), (52, 4183620), (56, 3884790), (60, 3625804), (65, 3346896), (70, 3107832), (78, 2789080), (80, 2719353), (84, 2589860), (91, 2390640), (98, 2219880), (104, 2091810), (105, 2071888), (112, 1942395), (120, 1812902), (130, 1673448), (140, 1553916), (147, 1479920), (156, 1394540), (168, 1294930), (182, 1195320), (195, 1115632), (196, 1109940), (208, 1045905), (210, 1035944), (240, 906451), (245, 887952), (260, 836724), (273, 796880), (280, 776958), (294, 739960), (312, 697270), (336, 647465), (364, 597660), (390, 557816), (392, 554970), (420, 517972), (455, 478128), (490, 443976), (520, 418362), (546, 398440), (560, 388479), (588, 369980), (624, 348635), (637, 341520), (728, 298830), (735, 295984), (780, 278908), (784, 277485), (840, 258986), (910, 239064), (980, 221988), (1040, 209181), (1092, 199220), (1176, 184990), (1274, 170760), (1365, 159376), (1423, 152880), (1456, 149415), (1470, 147992), (1560, 139454), (1680, 129493), (1820, 119532), (1911, 113840), (1960, 110994), (2184, 99610), (2352, 92495), (2548, 85380), (2730, 79688), (2846, 76440), (2940, 73996), (3120, 69727), (3185, 68304), (3640, 59766), (3822, 56920), (3920, 55497), (4269, 50960), (4368, 49805), (5096, 42690), (5460, 39844), (5692, 38220), (5880, 36998), (6370, 34152), (7115, 30576), (7280, 29883), (7644, 28460), (8538, 25480), (9555, 22768), (9961, 21840), (10192, 21345), (10920, 19922), (11384, 19110), (11760, 18499), (12740, 17076), (14230, 15288)]