121218720

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{839}}^1$

素因数の和:907

約数の個数: 192

約数和(自身を含む): 447068160

約数和(自身を除く): 325849440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 43, 48, 56, 60, 70, 80, 84, 86, 96, 105, 112, 120, 129, 140, 160, 168, 172, 210, 215, 224, 240, 258, 280, 301, 336, 344, 420, 430, 480, 516, 560, 602, 645, 672, 688, 839, 840, 860, 903, 1032, 1120, 1204, 1290, 1376, 1505, 1678, 1680, 1720, 1806, 2064, 2408, 2517, 2580, 3010, 3356, 3360, 3440, 3612, 4128, 4195, 4515, 4816, 5034, 5160, 5873, 6020, 6712, 6880, 7224, 8390, 9030, 9632, 10068, 10320, 11746, 12040, 12585, 13424, 14448, 16780, 17619, 18060, 20136, 20640, 23492, 24080, 25170, 26848, 28896, 29365, 33560, 35238, 36077, 36120, 40272, 46984, 48160, 50340, 58730, 67120, 70476, 72154, 72240, 80544, 88095, 93968, 100680, 108231, 117460, 134240, 140952, 144308, 144480, 176190, 180385, 187936, 201360, 216462, 234920, 252539, 281904, 288616, 352380, 360770, 402720, 432924, 469840, 505078, 541155, 563808, 577232, 704760, 721540, 757617, 865848, 939680, 1010156, 1082310, 1154464, 1262695, 1409520, 1443080, 1515234, 1731696, 2020312, 2164620, 2525390, 2819040, 2886160, 3030468, 3463392, 3788085, 4040624, 4329240, 5050780, 5772320, 6060936, 7576170, 8081248, 8658480, 10101560, 12121872, 15152340, 17316960, 20203120, 24243744, 30304680, 40406240, 60609360, 121218720]

約数ペア:

[(1, 121218720), (2, 60609360), (3, 40406240), (4, 30304680), (5, 24243744), (6, 20203120), (7, 17316960), (8, 15152340), (10, 12121872), (12, 10101560), (14, 8658480), (15, 8081248), (16, 7576170), (20, 6060936), (21, 5772320), (24, 5050780), (28, 4329240), (30, 4040624), (32, 3788085), (35, 3463392), (40, 3030468), (42, 2886160), (43, 2819040), (48, 2525390), (56, 2164620), (60, 2020312), (70, 1731696), (80, 1515234), (84, 1443080), (86, 1409520), (96, 1262695), (105, 1154464), (112, 1082310), (120, 1010156), (129, 939680), (140, 865848), (160, 757617), (168, 721540), (172, 704760), (210, 577232), (215, 563808), (224, 541155), (240, 505078), (258, 469840), (280, 432924), (301, 402720), (336, 360770), (344, 352380), (420, 288616), (430, 281904), (480, 252539), (516, 234920), (560, 216462), (602, 201360), (645, 187936), (672, 180385), (688, 176190), (839, 144480), (840, 144308), (860, 140952), (903, 134240), (1032, 117460), (1120, 108231), (1204, 100680), (1290, 93968), (1376, 88095), (1505, 80544), (1678, 72240), (1680, 72154), (1720, 70476), (1806, 67120), (2064, 58730), (2408, 50340), (2517, 48160), (2580, 46984), (3010, 40272), (3356, 36120), (3360, 36077), (3440, 35238), (3612, 33560), (4128, 29365), (4195, 28896), (4515, 26848), (4816, 25170), (5034, 24080), (5160, 23492), (5873, 20640), (6020, 20136), (6712, 18060), (6880, 17619), (7224, 16780), (8390, 14448), (9030, 13424), (9632, 12585), (10068, 12040), (10320, 11746)]