81009656

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{499}}^1$

素因数の和:748

約数の個数: 64

約数和(自身を含む): 188160000

約数和(自身を除く): 107150344

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 223, 364, 446, 499, 728, 892, 998, 1561, 1784, 1996, 2899, 3122, 3493, 3992, 5798, 6244, 6487, 6986, 11596, 12488, 12974, 13972, 20293, 23192, 25948, 27944, 40586, 45409, 51896, 81172, 90818, 111277, 162344, 181636, 222554, 363272, 445108, 778939, 890216, 1446601, 1557878, 2893202, 3115756, 5786404, 6231512, 10126207, 11572808, 20252414, 40504828, 81009656]

約数ペア:

[(1, 81009656), (2, 40504828), (4, 20252414), (7, 11572808), (8, 10126207), (13, 6231512), (14, 5786404), (26, 3115756), (28, 2893202), (52, 1557878), (56, 1446601), (91, 890216), (104, 778939), (182, 445108), (223, 363272), (364, 222554), (446, 181636), (499, 162344), (728, 111277), (892, 90818), (998, 81172), (1561, 51896), (1784, 45409), (1996, 40586), (2899, 27944), (3122, 25948), (3493, 23192), (3992, 20293), (5798, 13972), (6244, 12974), (6487, 12488), (6986, 11596)]