20648584

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1$

素因数の和:214

約数の個数: 64

約数和(自身を含む): 44452800

約数和(自身を除く): 23804216

約数列:

[1, 2, 4, 8, 11, 22, 41, 44, 59, 82, 88, 97, 118, 164, 194, 236, 328, 388, 451, 472, 649, 776, 902, 1067, 1298, 1804, 2134, 2419, 2596, 3608, 3977, 4268, 4838, 5192, 5723, 7954, 8536, 9676, 11446, 15908, 19352, 22892, 26609, 31816, 43747, 45784, 53218, 62953, 87494, 106436, 125906, 174988, 212872, 234643, 251812, 349976, 469286, 503624, 938572, 1877144, 2581073, 5162146, 10324292, 20648584]

約数ペア:

[(1, 20648584), (2, 10324292), (4, 5162146), (8, 2581073), (11, 1877144), (22, 938572), (41, 503624), (44, 469286), (59, 349976), (82, 251812), (88, 234643), (97, 212872), (118, 174988), (164, 125906), (194, 106436), (236, 87494), (328, 62953), (388, 53218), (451, 45784), (472, 43747), (649, 31816), (776, 26609), (902, 22892), (1067, 19352), (1298, 15908), (1804, 11446), (2134, 9676), (2419, 8536), (2596, 7954), (3608, 5723), (3977, 5192), (4268, 4838)]