20705216

素因数分解:

$2^6\times 7^1\times {\mathrm{113}}^1\times {\mathrm{409}}^1$

素因数の和:541

約数の個数: 56

約数和(自身を含む): 47487840

約数和(自身を除く): 26782624

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 113, 224, 226, 409, 448, 452, 791, 818, 904, 1582, 1636, 1808, 2863, 3164, 3272, 3616, 5726, 6328, 6544, 7232, 11452, 12656, 13088, 22904, 25312, 26176, 45808, 46217, 50624, 91616, 92434, 183232, 184868, 323519, 369736, 647038, 739472, 1294076, 1478944, 2588152, 2957888, 5176304, 10352608, 20705216]

約数ペア:

[(1, 20705216), (2, 10352608), (4, 5176304), (7, 2957888), (8, 2588152), (14, 1478944), (16, 1294076), (28, 739472), (32, 647038), (56, 369736), (64, 323519), (112, 184868), (113, 183232), (224, 92434), (226, 91616), (409, 50624), (448, 46217), (452, 45808), (791, 26176), (818, 25312), (904, 22904), (1582, 13088), (1636, 12656), (1808, 11452), (2863, 7232), (3164, 6544), (3272, 6328), (3616, 5726)]