21744240

素因数分解:

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

素因数の和:116

約数の個数: 180

約数和(自身を含む): 80278344

約数和(自身を除く): 58534104

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 43, 48, 49, 56, 60, 70, 80, 84, 86, 98, 105, 112, 120, 129, 140, 147, 168, 172, 196, 210, 215, 240, 245, 258, 280, 294, 301, 336, 344, 392, 420, 430, 490, 516, 560, 588, 602, 645, 688, 735, 784, 840, 860, 903, 980, 1032, 1176, 1204, 1290, 1470, 1505, 1680, 1720, 1806, 1849, 1960, 2064, 2107, 2352, 2408, 2580, 2940, 3010, 3440, 3612, 3698, 3920, 4214, 4515, 4816, 5160, 5547, 5880, 6020, 6321, 7224, 7396, 8428, 9030, 9245, 10320, 10535, 11094, 11760, 12040, 12642, 12943, 14448, 14792, 16856, 18060, 18490, 21070, 22188, 24080, 25284, 25886, 27735, 29584, 31605, 33712, 36120, 36980, 38829, 42140, 44376, 50568, 51772, 55470, 63210, 64715, 72240, 73960, 77658, 84280, 88752, 90601, 101136, 103544, 110940, 126420, 129430, 147920, 155316, 168560, 181202, 194145, 207088, 221880, 252840, 258860, 271803, 310632, 362404, 388290, 443760, 453005, 505680, 517720, 543606, 621264, 724808, 776580, 906010, 1035440, 1087212, 1359015, 1449616, 1553160, 1812020, 2174424, 2718030, 3106320, 3624040, 4348848, 5436060, 7248080, 10872120, 21744240]

約数ペア:

[(1, 21744240), (2, 10872120), (3, 7248080), (4, 5436060), (5, 4348848), (6, 3624040), (7, 3106320), (8, 2718030), (10, 2174424), (12, 1812020), (14, 1553160), (15, 1449616), (16, 1359015), (20, 1087212), (21, 1035440), (24, 906010), (28, 776580), (30, 724808), (35, 621264), (40, 543606), (42, 517720), (43, 505680), (48, 453005), (49, 443760), (56, 388290), (60, 362404), (70, 310632), (80, 271803), (84, 258860), (86, 252840), (98, 221880), (105, 207088), (112, 194145), (120, 181202), (129, 168560), (140, 155316), (147, 147920), (168, 129430), (172, 126420), (196, 110940), (210, 103544), (215, 101136), (240, 90601), (245, 88752), (258, 84280), (280, 77658), (294, 73960), (301, 72240), (336, 64715), (344, 63210), (392, 55470), (420, 51772), (430, 50568), (490, 44376), (516, 42140), (560, 38829), (588, 36980), (602, 36120), (645, 33712), (688, 31605), (735, 29584), (784, 27735), (840, 25886), (860, 25284), (903, 24080), (980, 22188), (1032, 21070), (1176, 18490), (1204, 18060), (1290, 16856), (1470, 14792), (1505, 14448), (1680, 12943), (1720, 12642), (1806, 12040), (1849, 11760), (1960, 11094), (2064, 10535), (2107, 10320), (2352, 9245), (2408, 9030), (2580, 8428), (2940, 7396), (3010, 7224), (3440, 6321), (3612, 6020), (3698, 5880), (3920, 5547), (4214, 5160), (4515, 4816)]