20388480

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:107

約数の個数: 256

約数和(自身を含む): 78140160

約数和(自身を除く): 57751680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 37, 40, 41, 42, 48, 56, 60, 64, 70, 74, 80, 82, 84, 96, 105, 111, 112, 120, 123, 128, 140, 148, 160, 164, 168, 185, 192, 205, 210, 222, 224, 240, 246, 259, 280, 287, 296, 320, 328, 336, 370, 384, 410, 420, 444, 448, 480, 492, 518, 555, 560, 574, 592, 615, 640, 656, 672, 740, 777, 820, 840, 861, 888, 896, 960, 984, 1036, 1110, 1120, 1148, 1184, 1230, 1295, 1312, 1344, 1435, 1480, 1517, 1554, 1640, 1680, 1722, 1776, 1920, 1968, 2072, 2220, 2240, 2296, 2368, 2460, 2590, 2624, 2688, 2870, 2960, 3034, 3108, 3280, 3360, 3444, 3552, 3885, 3936, 4144, 4305, 4440, 4480, 4551, 4592, 4736, 4920, 5180, 5248, 5740, 5920, 6068, 6216, 6560, 6720, 6888, 7104, 7585, 7770, 7872, 8288, 8610, 8880, 9102, 9184, 9840, 10360, 10619, 11480, 11840, 12136, 12432, 13120, 13440, 13776, 14208, 15170, 15540, 15744, 16576, 17220, 17760, 18204, 18368, 19680, 20720, 21238, 22755, 22960, 23680, 24272, 24864, 26240, 27552, 30340, 31080, 31857, 33152, 34440, 35520, 36408, 36736, 39360, 41440, 42476, 45510, 45920, 48544, 49728, 53095, 55104, 60680, 62160, 63714, 68880, 71040, 72816, 78720, 82880, 84952, 91020, 91840, 97088, 99456, 106190, 110208, 121360, 124320, 127428, 137760, 145632, 159285, 165760, 169904, 182040, 183680, 194176, 212380, 242720, 248640, 254856, 275520, 291264, 318570, 339808, 364080, 424760, 485440, 497280, 509712, 551040, 582528, 637140, 679616, 728160, 849520, 970880, 1019424, 1274280, 1359232, 1456320, 1699040, 2038848, 2548560, 2912640, 3398080, 4077696, 5097120, 6796160, 10194240, 20388480]

約数ペア:

[(1, 20388480), (2, 10194240), (3, 6796160), (4, 5097120), (5, 4077696), (6, 3398080), (7, 2912640), (8, 2548560), (10, 2038848), (12, 1699040), (14, 1456320), (15, 1359232), (16, 1274280), (20, 1019424), (21, 970880), (24, 849520), (28, 728160), (30, 679616), (32, 637140), (35, 582528), (37, 551040), (40, 509712), (41, 497280), (42, 485440), (48, 424760), (56, 364080), (60, 339808), (64, 318570), (70, 291264), (74, 275520), (80, 254856), (82, 248640), (84, 242720), (96, 212380), (105, 194176), (111, 183680), (112, 182040), (120, 169904), (123, 165760), (128, 159285), (140, 145632), (148, 137760), (160, 127428), (164, 124320), (168, 121360), (185, 110208), (192, 106190), (205, 99456), (210, 97088), (222, 91840), (224, 91020), (240, 84952), (246, 82880), (259, 78720), (280, 72816), (287, 71040), (296, 68880), (320, 63714), (328, 62160), (336, 60680), (370, 55104), (384, 53095), (410, 49728), (420, 48544), (444, 45920), (448, 45510), (480, 42476), (492, 41440), (518, 39360), (555, 36736), (560, 36408), (574, 35520), (592, 34440), (615, 33152), (640, 31857), (656, 31080), (672, 30340), (740, 27552), (777, 26240), (820, 24864), (840, 24272), (861, 23680), (888, 22960), (896, 22755), (960, 21238), (984, 20720), (1036, 19680), (1110, 18368), (1120, 18204), (1148, 17760), (1184, 17220), (1230, 16576), (1295, 15744), (1312, 15540), (1344, 15170), (1435, 14208), (1480, 13776), (1517, 13440), (1554, 13120), (1640, 12432), (1680, 12136), (1722, 11840), (1776, 11480), (1920, 10619), (1968, 10360), (2072, 9840), (2220, 9184), (2240, 9102), (2296, 8880), (2368, 8610), (2460, 8288), (2590, 7872), (2624, 7770), (2688, 7585), (2870, 7104), (2960, 6888), (3034, 6720), (3108, 6560), (3280, 6216), (3360, 6068), (3444, 5920), (3552, 5740), (3885, 5248), (3936, 5180), (4144, 4920), (4305, 4736), (4440, 4592), (4480, 4551)]