20173909868

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{246661}}^1$

素因数の和:246822

約数の個数: 48

約数和(自身を含む): 42433757184

約数和(自身を除く): 22259847316

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 127, 161, 254, 322, 508, 644, 889, 1778, 2921, 3556, 5842, 11684, 20447, 40894, 81788, 246661, 493322, 986644, 1726627, 3453254, 5673203, 6906508, 11346406, 22692812, 31325947, 39712421, 62651894, 79424842, 125303788, 158849684, 219281629, 438563258, 720496781, 877126516, 1440993562, 2881987124, 5043477467, 10086954934, 20173909868]

約数ペア:

[(1, 20173909868), (2, 10086954934), (4, 5043477467), (7, 2881987124), (14, 1440993562), (23, 877126516), (28, 720496781), (46, 438563258), (92, 219281629), (127, 158849684), (161, 125303788), (254, 79424842), (322, 62651894), (508, 39712421), (644, 31325947), (889, 22692812), (1778, 11346406), (2921, 6906508), (3556, 5673203), (5842, 3453254), (11684, 1726627), (20447, 986644), (40894, 493322), (81788, 246661)]