20369664

素因数分解:

$2^8\times 3^3\times 7^1\times {\mathrm{421}}^1$

素因数の和:453

約数の個数: 144

約数和(自身を含む): 69005440

約数和(自身を除く): 48635776

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 54, 56, 63, 64, 72, 84, 96, 108, 112, 126, 128, 144, 168, 189, 192, 216, 224, 252, 256, 288, 336, 378, 384, 421, 432, 448, 504, 576, 672, 756, 768, 842, 864, 896, 1008, 1152, 1263, 1344, 1512, 1684, 1728, 1792, 2016, 2304, 2526, 2688, 2947, 3024, 3368, 3456, 3789, 4032, 5052, 5376, 5894, 6048, 6736, 6912, 7578, 8064, 8841, 10104, 11367, 11788, 12096, 13472, 15156, 16128, 17682, 20208, 22734, 23576, 24192, 26523, 26944, 30312, 35364, 40416, 45468, 47152, 48384, 53046, 53888, 60624, 70728, 79569, 80832, 90936, 94304, 106092, 107776, 121248, 141456, 159138, 161664, 181872, 188608, 212184, 242496, 282912, 318276, 323328, 363744, 377216, 424368, 484992, 565824, 636552, 727488, 754432, 848736, 969984, 1131648, 1273104, 1454976, 1697472, 2263296, 2546208, 2909952, 3394944, 5092416, 6789888, 10184832, 20369664]

約数ペア:

[(1, 20369664), (2, 10184832), (3, 6789888), (4, 5092416), (6, 3394944), (7, 2909952), (8, 2546208), (9, 2263296), (12, 1697472), (14, 1454976), (16, 1273104), (18, 1131648), (21, 969984), (24, 848736), (27, 754432), (28, 727488), (32, 636552), (36, 565824), (42, 484992), (48, 424368), (54, 377216), (56, 363744), (63, 323328), (64, 318276), (72, 282912), (84, 242496), (96, 212184), (108, 188608), (112, 181872), (126, 161664), (128, 159138), (144, 141456), (168, 121248), (189, 107776), (192, 106092), (216, 94304), (224, 90936), (252, 80832), (256, 79569), (288, 70728), (336, 60624), (378, 53888), (384, 53046), (421, 48384), (432, 47152), (448, 45468), (504, 40416), (576, 35364), (672, 30312), (756, 26944), (768, 26523), (842, 24192), (864, 23576), (896, 22734), (1008, 20208), (1152, 17682), (1263, 16128), (1344, 15156), (1512, 13472), (1684, 12096), (1728, 11788), (1792, 11367), (2016, 10104), (2304, 8841), (2526, 8064), (2688, 7578), (2947, 6912), (3024, 6736), (3368, 6048), (3456, 5894), (3789, 5376), (4032, 5052)]