20010407740

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{251}}^1\times {\mathrm{137453}}^1$

素因数の和:137742

約数の個数: 48

約数和(自身を含む): 43644394080

約数和(自身を除く): 23633986340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 251, 290, 502, 580, 1004, 1255, 2510, 5020, 7279, 14558, 29116, 36395, 72790, 137453, 145580, 274906, 549812, 687265, 1374530, 2749060, 3986137, 7972274, 15944548, 19930685, 34500703, 39861370, 69001406, 79722740, 138002812, 172503515, 345007030, 690014060, 1000520387, 2001040774, 4002081548, 5002601935, 10005203870, 20010407740]

約数ペア:

[(1, 20010407740), (2, 10005203870), (4, 5002601935), (5, 4002081548), (10, 2001040774), (20, 1000520387), (29, 690014060), (58, 345007030), (116, 172503515), (145, 138002812), (251, 79722740), (290, 69001406), (502, 39861370), (580, 34500703), (1004, 19930685), (1255, 15944548), (2510, 7972274), (5020, 3986137), (7279, 2749060), (14558, 1374530), (29116, 687265), (36395, 549812), (72790, 274906), (137453, 145580)]