20004116

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:264

約数の個数: 48

約数和(自身を含む): 39842880

約数和(自身を除く): 19838764

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 97, 109, 172, 194, 218, 388, 436, 473, 946, 1067, 1199, 1892, 2134, 2398, 4171, 4268, 4687, 4796, 8342, 9374, 10573, 16684, 18748, 21146, 42292, 45881, 51557, 91762, 103114, 116303, 183524, 206228, 232606, 454639, 465212, 909278, 1818556, 5001029, 10002058, 20004116]

約数ペア:

[(1, 20004116), (2, 10002058), (4, 5001029), (11, 1818556), (22, 909278), (43, 465212), (44, 454639), (86, 232606), (97, 206228), (109, 183524), (172, 116303), (194, 103114), (218, 91762), (388, 51557), (436, 45881), (473, 42292), (946, 21146), (1067, 18748), (1199, 16684), (1892, 10573), (2134, 9374), (2398, 8342), (4171, 4796), (4268, 4687)]