20371904

素因数分解:

$2^6\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1229}}^1$

素因数の和:1285

約数の個数: 56

約数和(自身を含む): 47487840

約数和(自身を除く): 27115936

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 56, 64, 74, 112, 148, 224, 259, 296, 448, 518, 592, 1036, 1184, 1229, 2072, 2368, 2458, 4144, 4916, 8288, 8603, 9832, 16576, 17206, 19664, 34412, 39328, 45473, 68824, 78656, 90946, 137648, 181892, 275296, 318311, 363784, 550592, 636622, 727568, 1273244, 1455136, 2546488, 2910272, 5092976, 10185952, 20371904]

約数ペア:

[(1, 20371904), (2, 10185952), (4, 5092976), (7, 2910272), (8, 2546488), (14, 1455136), (16, 1273244), (28, 727568), (32, 636622), (37, 550592), (56, 363784), (64, 318311), (74, 275296), (112, 181892), (148, 137648), (224, 90946), (259, 78656), (296, 68824), (448, 45473), (518, 39328), (592, 34412), (1036, 19664), (1184, 17206), (1229, 16576), (2072, 9832), (2368, 8603), (2458, 8288), (4144, 4916)]