81018938

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{283}}^1$

素因数の和:340

約数の個数: 72

約数和(自身を含む): 165894624

約数和(自身を除く): 84875686

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 77, 91, 121, 143, 154, 169, 182, 242, 283, 286, 338, 566, 847, 1001, 1183, 1573, 1694, 1859, 1981, 2002, 2366, 3113, 3146, 3679, 3718, 3962, 6226, 7358, 11011, 13013, 20449, 21791, 22022, 25753, 26026, 34243, 40469, 40898, 43582, 47827, 51506, 68486, 80938, 95654, 143143, 239701, 283283, 286286, 334789, 445159, 479402, 526097, 566566, 669578, 890318, 1052194, 3116113, 3682679, 5787067, 6232226, 7365358, 11574134, 40509469, 81018938]

約数ペア:

[(1, 81018938), (2, 40509469), (7, 11574134), (11, 7365358), (13, 6232226), (14, 5787067), (22, 3682679), (26, 3116113), (77, 1052194), (91, 890318), (121, 669578), (143, 566566), (154, 526097), (169, 479402), (182, 445159), (242, 334789), (283, 286286), (286, 283283), (338, 239701), (566, 143143), (847, 95654), (1001, 80938), (1183, 68486), (1573, 51506), (1694, 47827), (1859, 43582), (1981, 40898), (2002, 40469), (2366, 34243), (3113, 26026), (3146, 25753), (3679, 22022), (3718, 21791), (3962, 20449), (6226, 13013), (7358, 11011)]