20145244

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{1993}}^1$

素因数の和:2042

約数の個数: 36

約数和(自身を含む): 42543984

約数和(自身を除く): 22398740

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 361, 532, 722, 1444, 1993, 2527, 3986, 5054, 7972, 10108, 13951, 27902, 37867, 55804, 75734, 151468, 265069, 530138, 719473, 1060276, 1438946, 2877892, 5036311, 10072622, 20145244]

約数ペア:

[(1, 20145244), (2, 10072622), (4, 5036311), (7, 2877892), (14, 1438946), (19, 1060276), (28, 719473), (38, 530138), (76, 265069), (133, 151468), (266, 75734), (361, 55804), (532, 37867), (722, 27902), (1444, 13951), (1993, 10108), (2527, 7972), (3986, 5054)]