20329568

素因数分解:

$2^5\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1931}}^1$

素因数の和:1995

約数の個数: 48

約数和(自身を含む): 46738944

約数和(自身を除く): 26409376

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 47, 56, 94, 112, 188, 224, 329, 376, 658, 752, 1316, 1504, 1931, 2632, 3862, 5264, 7724, 10528, 13517, 15448, 27034, 30896, 54068, 61792, 90757, 108136, 181514, 216272, 363028, 432544, 635299, 726056, 1270598, 1452112, 2541196, 2904224, 5082392, 10164784, 20329568]

約数ペア:

[(1, 20329568), (2, 10164784), (4, 5082392), (7, 2904224), (8, 2541196), (14, 1452112), (16, 1270598), (28, 726056), (32, 635299), (47, 432544), (56, 363028), (94, 216272), (112, 181514), (188, 108136), (224, 90757), (329, 61792), (376, 54068), (658, 30896), (752, 27034), (1316, 15448), (1504, 13517), (1931, 10528), (2632, 7724), (3862, 5264)]