20419872

素因数分解:

$2^5\times 3^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{317}}^1$

素因数の和:402

約数の個数: 96

約数和(自身を含む): 59621184

約数和(自身を除く): 39201312

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 32, 33, 44, 48, 61, 66, 88, 96, 122, 132, 176, 183, 244, 264, 317, 352, 366, 488, 528, 634, 671, 732, 951, 976, 1056, 1268, 1342, 1464, 1902, 1952, 2013, 2536, 2684, 2928, 3487, 3804, 4026, 5072, 5368, 5856, 6974, 7608, 8052, 10144, 10461, 10736, 13948, 15216, 16104, 19337, 20922, 21472, 27896, 30432, 32208, 38674, 41844, 55792, 58011, 64416, 77348, 83688, 111584, 116022, 154696, 167376, 212707, 232044, 309392, 334752, 425414, 464088, 618784, 638121, 850828, 928176, 1276242, 1701656, 1856352, 2552484, 3403312, 5104968, 6806624, 10209936, 20419872]

約数ペア:

[(1, 20419872), (2, 10209936), (3, 6806624), (4, 5104968), (6, 3403312), (8, 2552484), (11, 1856352), (12, 1701656), (16, 1276242), (22, 928176), (24, 850828), (32, 638121), (33, 618784), (44, 464088), (48, 425414), (61, 334752), (66, 309392), (88, 232044), (96, 212707), (122, 167376), (132, 154696), (176, 116022), (183, 111584), (244, 83688), (264, 77348), (317, 64416), (352, 58011), (366, 55792), (488, 41844), (528, 38674), (634, 32208), (671, 30432), (732, 27896), (951, 21472), (976, 20922), (1056, 19337), (1268, 16104), (1342, 15216), (1464, 13948), (1902, 10736), (1952, 10461), (2013, 10144), (2536, 8052), (2684, 7608), (2928, 6974), (3487, 5856), (3804, 5368), (4026, 5072)]