20685492796

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{111253}}^1$

素因数の和:111370

約数の個数: 48

約数和(自身を含む): 39474699264

約数和(自身を除く): 18789206468

約数列:

[1, 2, 4, 23, 43, 46, 47, 86, 92, 94, 172, 188, 989, 1081, 1978, 2021, 2162, 3956, 4042, 4324, 8084, 46483, 92966, 111253, 185932, 222506, 445012, 2558819, 4783879, 5117638, 5228891, 9567758, 10235276, 10457782, 19135516, 20915564, 110029217, 120264493, 220058434, 224842313, 240528986, 440116868, 449684626, 481057972, 899369252, 5171373199, 10342746398, 20685492796]

約数ペア:

[(1, 20685492796), (2, 10342746398), (4, 5171373199), (23, 899369252), (43, 481057972), (46, 449684626), (47, 440116868), (86, 240528986), (92, 224842313), (94, 220058434), (172, 120264493), (188, 110029217), (989, 20915564), (1081, 19135516), (1978, 10457782), (2021, 10235276), (2162, 9567758), (3956, 5228891), (4042, 5117638), (4324, 4783879), (8084, 2558819), (46483, 445012), (92966, 222506), (111253, 185932)]