20624864

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1153}}^1$

素因数の和:1219

約数の個数: 48

約数和(自身を含む): 44784432

約数和(自身を除く): 24159568

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 43, 52, 86, 104, 172, 208, 344, 416, 559, 688, 1118, 1153, 1376, 2236, 2306, 4472, 4612, 8944, 9224, 14989, 17888, 18448, 29978, 36896, 49579, 59956, 99158, 119912, 198316, 239824, 396632, 479648, 644527, 793264, 1289054, 1586528, 2578108, 5156216, 10312432, 20624864]

約数ペア:

[(1, 20624864), (2, 10312432), (4, 5156216), (8, 2578108), (13, 1586528), (16, 1289054), (26, 793264), (32, 644527), (43, 479648), (52, 396632), (86, 239824), (104, 198316), (172, 119912), (208, 99158), (344, 59956), (416, 49579), (559, 36896), (688, 29978), (1118, 18448), (1153, 17888), (1376, 14989), (2236, 9224), (2306, 8944), (4472, 4612)]