20154960

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:103

約数の個数: 320

約数和(自身を含む): 83804160

約数和(自身を除く): 63649200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 31, 35, 36, 40, 42, 43, 45, 48, 54, 56, 60, 62, 63, 70, 72, 80, 84, 86, 90, 93, 105, 108, 112, 120, 124, 126, 129, 135, 140, 144, 155, 168, 172, 180, 186, 189, 210, 215, 216, 217, 240, 248, 252, 258, 270, 279, 280, 301, 310, 315, 336, 344, 360, 372, 378, 387, 420, 430, 432, 434, 465, 496, 504, 516, 540, 558, 560, 602, 620, 630, 645, 651, 688, 720, 744, 756, 774, 837, 840, 860, 868, 903, 930, 945, 1008, 1032, 1080, 1085, 1116, 1161, 1204, 1240, 1260, 1290, 1302, 1333, 1395, 1488, 1505, 1512, 1548, 1674, 1680, 1720, 1736, 1806, 1860, 1890, 1935, 1953, 2064, 2160, 2170, 2232, 2322, 2408, 2480, 2520, 2580, 2604, 2666, 2709, 2790, 3010, 3024, 3096, 3255, 3348, 3440, 3472, 3612, 3720, 3780, 3870, 3906, 3999, 4185, 4340, 4464, 4515, 4644, 4816, 5040, 5160, 5208, 5332, 5418, 5580, 5805, 5859, 6020, 6192, 6510, 6665, 6696, 7224, 7440, 7560, 7740, 7812, 7998, 8127, 8370, 8680, 9030, 9288, 9331, 9765, 10320, 10416, 10664, 10836, 11160, 11610, 11718, 11997, 12040, 13020, 13330, 13392, 13545, 14448, 15120, 15480, 15624, 15996, 16254, 16740, 17360, 18060, 18576, 18662, 19530, 19995, 21328, 21672, 22320, 23220, 23436, 23994, 24080, 26040, 26660, 27090, 27993, 29295, 30960, 31248, 31992, 32508, 33480, 35991, 36120, 37324, 39060, 39990, 40635, 43344, 46440, 46655, 46872, 47988, 52080, 53320, 54180, 55986, 58590, 59985, 63984, 65016, 66960, 71982, 72240, 74648, 78120, 79980, 81270, 83979, 92880, 93310, 93744, 95976, 106640, 108360, 111972, 117180, 119970, 130032, 139965, 143964, 149296, 156240, 159960, 162540, 167958, 179955, 186620, 191952, 216720, 223944, 234360, 239940, 251937, 279930, 287928, 319920, 325080, 335916, 359910, 373240, 419895, 447888, 468720, 479880, 503874, 559860, 575856, 650160, 671832, 719820, 746480, 839790, 959760, 1007748, 1119720, 1259685, 1343664, 1439640, 1679580, 2015496, 2239440, 2519370, 2879280, 3359160, 4030992, 5038740, 6718320, 10077480, 20154960]

約数ペア:

[(1, 20154960), (2, 10077480), (3, 6718320), (4, 5038740), (5, 4030992), (6, 3359160), (7, 2879280), (8, 2519370), (9, 2239440), (10, 2015496), (12, 1679580), (14, 1439640), (15, 1343664), (16, 1259685), (18, 1119720), (20, 1007748), (21, 959760), (24, 839790), (27, 746480), (28, 719820), (30, 671832), (31, 650160), (35, 575856), (36, 559860), (40, 503874), (42, 479880), (43, 468720), (45, 447888), (48, 419895), (54, 373240), (56, 359910), (60, 335916), (62, 325080), (63, 319920), (70, 287928), (72, 279930), (80, 251937), (84, 239940), (86, 234360), (90, 223944), (93, 216720), (105, 191952), (108, 186620), (112, 179955), (120, 167958), (124, 162540), (126, 159960), (129, 156240), (135, 149296), (140, 143964), (144, 139965), (155, 130032), (168, 119970), (172, 117180), (180, 111972), (186, 108360), (189, 106640), (210, 95976), (215, 93744), (216, 93310), (217, 92880), (240, 83979), (248, 81270), (252, 79980), (258, 78120), (270, 74648), (279, 72240), (280, 71982), (301, 66960), (310, 65016), (315, 63984), (336, 59985), (344, 58590), (360, 55986), (372, 54180), (378, 53320), (387, 52080), (420, 47988), (430, 46872), (432, 46655), (434, 46440), (465, 43344), (496, 40635), (504, 39990), (516, 39060), (540, 37324), (558, 36120), (560, 35991), (602, 33480), (620, 32508), (630, 31992), (645, 31248), (651, 30960), (688, 29295), (720, 27993), (744, 27090), (756, 26660), (774, 26040), (837, 24080), (840, 23994), (860, 23436), (868, 23220), (903, 22320), (930, 21672), (945, 21328), (1008, 19995), (1032, 19530), (1080, 18662), (1085, 18576), (1116, 18060), (1161, 17360), (1204, 16740), (1240, 16254), (1260, 15996), (1290, 15624), (1302, 15480), (1333, 15120), (1395, 14448), (1488, 13545), (1505, 13392), (1512, 13330), (1548, 13020), (1674, 12040), (1680, 11997), (1720, 11718), (1736, 11610), (1806, 11160), (1860, 10836), (1890, 10664), (1935, 10416), (1953, 10320), (2064, 9765), (2160, 9331), (2170, 9288), (2232, 9030), (2322, 8680), (2408, 8370), (2480, 8127), (2520, 7998), (2580, 7812), (2604, 7740), (2666, 7560), (2709, 7440), (2790, 7224), (3010, 6696), (3024, 6665), (3096, 6510), (3255, 6192), (3348, 6020), (3440, 5859), (3472, 5805), (3612, 5580), (3720, 5418), (3780, 5332), (3870, 5208), (3906, 5160), (3999, 5040), (4185, 4816), (4340, 4644), (4464, 4515)]