20842416

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:104

約数の個数: 240

約数和(自身を含む): 74280960

約数和(自身を除く): 53438544

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 23, 24, 28, 29, 31, 36, 42, 46, 48, 56, 58, 62, 63, 69, 72, 84, 87, 92, 93, 112, 116, 124, 126, 138, 144, 161, 168, 174, 184, 186, 203, 207, 217, 232, 248, 252, 261, 276, 279, 322, 336, 348, 368, 372, 406, 414, 434, 464, 483, 496, 504, 522, 552, 558, 609, 644, 651, 667, 696, 713, 744, 812, 828, 868, 899, 966, 1008, 1044, 1104, 1116, 1218, 1288, 1302, 1334, 1392, 1426, 1449, 1488, 1624, 1656, 1736, 1798, 1827, 1932, 1953, 2001, 2088, 2139, 2232, 2436, 2576, 2604, 2668, 2697, 2852, 2898, 3248, 3312, 3472, 3596, 3654, 3864, 3906, 4002, 4176, 4278, 4464, 4669, 4872, 4991, 5208, 5336, 5394, 5704, 5796, 6003, 6293, 6417, 7192, 7308, 7728, 7812, 8004, 8091, 8556, 9338, 9744, 9982, 10416, 10672, 10788, 11408, 11592, 12006, 12586, 12834, 14007, 14384, 14616, 14973, 15624, 16008, 16182, 17112, 18676, 18879, 19964, 20677, 21576, 23184, 24012, 25172, 25668, 28014, 29232, 29946, 31248, 32016, 32364, 34224, 37352, 37758, 39928, 41354, 42021, 43152, 44919, 48024, 50344, 51336, 56028, 56637, 59892, 62031, 64728, 74704, 75516, 79856, 82708, 84042, 89838, 96048, 100688, 102672, 112056, 113274, 119784, 124062, 129456, 144739, 151032, 165416, 168084, 179676, 186093, 224112, 226548, 239568, 248124, 289478, 302064, 330832, 336168, 359352, 372186, 434217, 453096, 496248, 578956, 672336, 718704, 744372, 868434, 906192, 992496, 1157912, 1302651, 1488744, 1736868, 2315824, 2605302, 2977488, 3473736, 5210604, 6947472, 10421208, 20842416]

約数ペア:

[(1, 20842416), (2, 10421208), (3, 6947472), (4, 5210604), (6, 3473736), (7, 2977488), (8, 2605302), (9, 2315824), (12, 1736868), (14, 1488744), (16, 1302651), (18, 1157912), (21, 992496), (23, 906192), (24, 868434), (28, 744372), (29, 718704), (31, 672336), (36, 578956), (42, 496248), (46, 453096), (48, 434217), (56, 372186), (58, 359352), (62, 336168), (63, 330832), (69, 302064), (72, 289478), (84, 248124), (87, 239568), (92, 226548), (93, 224112), (112, 186093), (116, 179676), (124, 168084), (126, 165416), (138, 151032), (144, 144739), (161, 129456), (168, 124062), (174, 119784), (184, 113274), (186, 112056), (203, 102672), (207, 100688), (217, 96048), (232, 89838), (248, 84042), (252, 82708), (261, 79856), (276, 75516), (279, 74704), (322, 64728), (336, 62031), (348, 59892), (368, 56637), (372, 56028), (406, 51336), (414, 50344), (434, 48024), (464, 44919), (483, 43152), (496, 42021), (504, 41354), (522, 39928), (552, 37758), (558, 37352), (609, 34224), (644, 32364), (651, 32016), (667, 31248), (696, 29946), (713, 29232), (744, 28014), (812, 25668), (828, 25172), (868, 24012), (899, 23184), (966, 21576), (1008, 20677), (1044, 19964), (1104, 18879), (1116, 18676), (1218, 17112), (1288, 16182), (1302, 16008), (1334, 15624), (1392, 14973), (1426, 14616), (1449, 14384), (1488, 14007), (1624, 12834), (1656, 12586), (1736, 12006), (1798, 11592), (1827, 11408), (1932, 10788), (1953, 10672), (2001, 10416), (2088, 9982), (2139, 9744), (2232, 9338), (2436, 8556), (2576, 8091), (2604, 8004), (2668, 7812), (2697, 7728), (2852, 7308), (2898, 7192), (3248, 6417), (3312, 6293), (3472, 6003), (3596, 5796), (3654, 5704), (3864, 5394), (3906, 5336), (4002, 5208), (4176, 4991), (4278, 4872), (4464, 4669)]