20526688

素因数分解:

$2^5\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1$

素因数の和:109

約数の個数: 144

約数和(自身を含む): 54295920

約数和(自身を除く): 33769232

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 19, 26, 28, 32, 38, 49, 52, 53, 56, 76, 91, 98, 104, 106, 112, 133, 152, 182, 196, 208, 212, 224, 247, 266, 304, 364, 371, 392, 416, 424, 494, 532, 608, 637, 689, 728, 742, 784, 848, 931, 988, 1007, 1064, 1274, 1378, 1456, 1484, 1568, 1696, 1729, 1862, 1976, 2014, 2128, 2548, 2597, 2756, 2912, 2968, 3458, 3724, 3952, 4028, 4256, 4823, 5096, 5194, 5512, 5936, 6916, 7049, 7448, 7904, 8056, 9646, 10192, 10388, 11024, 11872, 12103, 13091, 13832, 14098, 14896, 16112, 19292, 20384, 20776, 22048, 24206, 26182, 27664, 28196, 29792, 32224, 33761, 38584, 41552, 48412, 49343, 52364, 55328, 56392, 67522, 77168, 83104, 91637, 96824, 98686, 104728, 112784, 135044, 154336, 183274, 193648, 197372, 209456, 225568, 270088, 366548, 387296, 394744, 418912, 540176, 641459, 733096, 789488, 1080352, 1282918, 1466192, 1578976, 2565836, 2932384, 5131672, 10263344, 20526688]

約数ペア:

[(1, 20526688), (2, 10263344), (4, 5131672), (7, 2932384), (8, 2565836), (13, 1578976), (14, 1466192), (16, 1282918), (19, 1080352), (26, 789488), (28, 733096), (32, 641459), (38, 540176), (49, 418912), (52, 394744), (53, 387296), (56, 366548), (76, 270088), (91, 225568), (98, 209456), (104, 197372), (106, 193648), (112, 183274), (133, 154336), (152, 135044), (182, 112784), (196, 104728), (208, 98686), (212, 96824), (224, 91637), (247, 83104), (266, 77168), (304, 67522), (364, 56392), (371, 55328), (392, 52364), (416, 49343), (424, 48412), (494, 41552), (532, 38584), (608, 33761), (637, 32224), (689, 29792), (728, 28196), (742, 27664), (784, 26182), (848, 24206), (931, 22048), (988, 20776), (1007, 20384), (1064, 19292), (1274, 16112), (1378, 14896), (1456, 14098), (1484, 13832), (1568, 13091), (1696, 12103), (1729, 11872), (1862, 11024), (1976, 10388), (2014, 10192), (2128, 9646), (2548, 8056), (2597, 7904), (2756, 7448), (2912, 7049), (2968, 6916), (3458, 5936), (3724, 5512), (3952, 5194), (4028, 5096), (4256, 4823)]