20404748

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1933}}^1$

素因数の和:1986

約数の個数: 48

約数和(自身を含む): 45487680

約数和(自身を除く): 25082932

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 29, 52, 58, 91, 116, 182, 203, 364, 377, 406, 754, 812, 1508, 1933, 2639, 3866, 5278, 7732, 10556, 13531, 25129, 27062, 50258, 54124, 56057, 100516, 112114, 175903, 224228, 351806, 392399, 703612, 728741, 784798, 1457482, 1569596, 2914964, 5101187, 10202374, 20404748]

約数ペア:

[(1, 20404748), (2, 10202374), (4, 5101187), (7, 2914964), (13, 1569596), (14, 1457482), (26, 784798), (28, 728741), (29, 703612), (52, 392399), (58, 351806), (91, 224228), (116, 175903), (182, 112114), (203, 100516), (364, 56057), (377, 54124), (406, 50258), (754, 27062), (812, 25129), (1508, 13531), (1933, 10556), (2639, 7732), (3866, 5278)]