20878848

素因数分解:

$2^9\times 3^2\times {\mathrm{23}}^1\times {\mathrm{197}}^1$

素因数の和:244

約数の個数: 120

約数和(自身を含む): 63196848

約数和(自身を除く): 42318000

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 32, 36, 46, 48, 64, 69, 72, 92, 96, 128, 138, 144, 184, 192, 197, 207, 256, 276, 288, 368, 384, 394, 414, 512, 552, 576, 591, 736, 768, 788, 828, 1104, 1152, 1182, 1472, 1536, 1576, 1656, 1773, 2208, 2304, 2364, 2944, 3152, 3312, 3546, 4416, 4531, 4608, 4728, 5888, 6304, 6624, 7092, 8832, 9062, 9456, 11776, 12608, 13248, 13593, 14184, 17664, 18124, 18912, 25216, 26496, 27186, 28368, 35328, 36248, 37824, 40779, 50432, 52992, 54372, 56736, 72496, 75648, 81558, 100864, 105984, 108744, 113472, 144992, 151296, 163116, 217488, 226944, 289984, 302592, 326232, 434976, 453888, 579968, 652464, 869952, 907776, 1159936, 1304928, 1739904, 2319872, 2609856, 3479808, 5219712, 6959616, 10439424, 20878848]

約数ペア:

[(1, 20878848), (2, 10439424), (3, 6959616), (4, 5219712), (6, 3479808), (8, 2609856), (9, 2319872), (12, 1739904), (16, 1304928), (18, 1159936), (23, 907776), (24, 869952), (32, 652464), (36, 579968), (46, 453888), (48, 434976), (64, 326232), (69, 302592), (72, 289984), (92, 226944), (96, 217488), (128, 163116), (138, 151296), (144, 144992), (184, 113472), (192, 108744), (197, 105984), (207, 100864), (256, 81558), (276, 75648), (288, 72496), (368, 56736), (384, 54372), (394, 52992), (414, 50432), (512, 40779), (552, 37824), (576, 36248), (591, 35328), (736, 28368), (768, 27186), (788, 26496), (828, 25216), (1104, 18912), (1152, 18124), (1182, 17664), (1472, 14184), (1536, 13593), (1576, 13248), (1656, 12608), (1773, 11776), (2208, 9456), (2304, 9062), (2364, 8832), (2944, 7092), (3152, 6624), (3312, 6304), (3546, 5888), (4416, 4728), (4531, 4608)]