521157728

素因数分解:

$2^5\times 7^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{691}}^1$

素因数の和:765

約数の個数: 144

約数和(自身を含む): 1322005104

約数和(自身を除く): 800847376

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 37, 49, 52, 56, 74, 91, 98, 104, 112, 148, 182, 196, 208, 224, 259, 296, 364, 392, 416, 481, 518, 592, 637, 691, 728, 784, 962, 1036, 1184, 1274, 1382, 1456, 1568, 1813, 1924, 2072, 2548, 2764, 2912, 3367, 3626, 3848, 4144, 4837, 5096, 5528, 6734, 7252, 7696, 8288, 8983, 9674, 10192, 11056, 13468, 14504, 15392, 17966, 19348, 20384, 22112, 23569, 25567, 26936, 29008, 33859, 35932, 38696, 47138, 51134, 53872, 58016, 62881, 67718, 71864, 77392, 94276, 102268, 107744, 125762, 135436, 143728, 154784, 178969, 188552, 204536, 251524, 270872, 287456, 332371, 357938, 377104, 409072, 440167, 503048, 541744, 664742, 715876, 754208, 818144, 880334, 1006096, 1083488, 1252783, 1329484, 1431752, 1760668, 2012192, 2326597, 2505566, 2658968, 2863504, 3521336, 4653194, 5011132, 5317936, 5727008, 7042672, 9306388, 10022264, 10635872, 14085344, 16286179, 18612776, 20044528, 32572358, 37225552, 40089056, 65144716, 74451104, 130289432, 260578864, 521157728]

約数ペア:

[(1, 521157728), (2, 260578864), (4, 130289432), (7, 74451104), (8, 65144716), (13, 40089056), (14, 37225552), (16, 32572358), (26, 20044528), (28, 18612776), (32, 16286179), (37, 14085344), (49, 10635872), (52, 10022264), (56, 9306388), (74, 7042672), (91, 5727008), (98, 5317936), (104, 5011132), (112, 4653194), (148, 3521336), (182, 2863504), (196, 2658968), (208, 2505566), (224, 2326597), (259, 2012192), (296, 1760668), (364, 1431752), (392, 1329484), (416, 1252783), (481, 1083488), (518, 1006096), (592, 880334), (637, 818144), (691, 754208), (728, 715876), (784, 664742), (962, 541744), (1036, 503048), (1184, 440167), (1274, 409072), (1382, 377104), (1456, 357938), (1568, 332371), (1813, 287456), (1924, 270872), (2072, 251524), (2548, 204536), (2764, 188552), (2912, 178969), (3367, 154784), (3626, 143728), (3848, 135436), (4144, 125762), (4837, 107744), (5096, 102268), (5528, 94276), (6734, 77392), (7252, 71864), (7696, 67718), (8288, 62881), (8983, 58016), (9674, 53872), (10192, 51134), (11056, 47138), (13468, 38696), (14504, 35932), (15392, 33859), (17966, 29008), (19348, 26936), (20384, 25567), (22112, 23569)]