20765808

素因数分解:

$2^4\times 3^5\times 7^2\times {\mathrm{109}}^1$

素因数の和:146

約数の個数: 180

約数和(自身を含む): 70750680

約数和(自身を除く): 49984872

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 36, 42, 48, 49, 54, 56, 63, 72, 81, 84, 98, 108, 109, 112, 126, 144, 147, 162, 168, 189, 196, 216, 218, 243, 252, 294, 324, 327, 336, 378, 392, 432, 436, 441, 486, 504, 567, 588, 648, 654, 756, 763, 784, 872, 882, 972, 981, 1008, 1134, 1176, 1296, 1308, 1323, 1512, 1526, 1701, 1744, 1764, 1944, 1962, 2268, 2289, 2352, 2616, 2646, 2943, 3024, 3052, 3402, 3528, 3888, 3924, 3969, 4536, 4578, 5232, 5292, 5341, 5886, 6104, 6804, 6867, 7056, 7848, 7938, 8829, 9072, 9156, 10584, 10682, 11772, 11907, 12208, 13608, 13734, 15696, 15876, 16023, 17658, 18312, 20601, 21168, 21364, 23544, 23814, 26487, 27216, 27468, 31752, 32046, 35316, 36624, 41202, 42728, 47088, 47628, 48069, 52974, 54936, 61803, 63504, 64092, 70632, 82404, 85456, 95256, 96138, 105948, 109872, 123606, 128184, 141264, 144207, 164808, 185409, 190512, 192276, 211896, 247212, 256368, 288414, 329616, 370818, 384552, 423792, 432621, 494424, 576828, 741636, 769104, 865242, 988848, 1153656, 1297863, 1483272, 1730484, 2307312, 2595726, 2966544, 3460968, 5191452, 6921936, 10382904, 20765808]

約数ペア:

[(1, 20765808), (2, 10382904), (3, 6921936), (4, 5191452), (6, 3460968), (7, 2966544), (8, 2595726), (9, 2307312), (12, 1730484), (14, 1483272), (16, 1297863), (18, 1153656), (21, 988848), (24, 865242), (27, 769104), (28, 741636), (36, 576828), (42, 494424), (48, 432621), (49, 423792), (54, 384552), (56, 370818), (63, 329616), (72, 288414), (81, 256368), (84, 247212), (98, 211896), (108, 192276), (109, 190512), (112, 185409), (126, 164808), (144, 144207), (147, 141264), (162, 128184), (168, 123606), (189, 109872), (196, 105948), (216, 96138), (218, 95256), (243, 85456), (252, 82404), (294, 70632), (324, 64092), (327, 63504), (336, 61803), (378, 54936), (392, 52974), (432, 48069), (436, 47628), (441, 47088), (486, 42728), (504, 41202), (567, 36624), (588, 35316), (648, 32046), (654, 31752), (756, 27468), (763, 27216), (784, 26487), (872, 23814), (882, 23544), (972, 21364), (981, 21168), (1008, 20601), (1134, 18312), (1176, 17658), (1296, 16023), (1308, 15876), (1323, 15696), (1512, 13734), (1526, 13608), (1701, 12208), (1744, 11907), (1764, 11772), (1944, 10682), (1962, 10584), (2268, 9156), (2289, 9072), (2352, 8829), (2616, 7938), (2646, 7848), (2943, 7056), (3024, 6867), (3052, 6804), (3402, 6104), (3528, 5886), (3888, 5341), (3924, 5292), (3969, 5232), (4536, 4578)]