20687296

素因数分解:

$2^6\times 7^1\times {\mathrm{61}}^1\times {\mathrm{757}}^1$

素因数の和:837

約数の個数: 56

約数和(自身を含む): 47747936

約数和(自身を除く): 27060640

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 61, 64, 112, 122, 224, 244, 427, 448, 488, 757, 854, 976, 1514, 1708, 1952, 3028, 3416, 3904, 5299, 6056, 6832, 10598, 12112, 13664, 21196, 24224, 27328, 42392, 46177, 48448, 84784, 92354, 169568, 184708, 323239, 339136, 369416, 646478, 738832, 1292956, 1477664, 2585912, 2955328, 5171824, 10343648, 20687296]

約数ペア:

[(1, 20687296), (2, 10343648), (4, 5171824), (7, 2955328), (8, 2585912), (14, 1477664), (16, 1292956), (28, 738832), (32, 646478), (56, 369416), (61, 339136), (64, 323239), (112, 184708), (122, 169568), (224, 92354), (244, 84784), (427, 48448), (448, 46177), (488, 42392), (757, 27328), (854, 24224), (976, 21196), (1514, 13664), (1708, 12112), (1952, 10598), (3028, 6832), (3416, 6056), (3904, 5299)]