81742518

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{2887}}^1$

素因数の和:2930

約数の個数: 72

約数和(自身を含む): 209720784

約数和(自身を除く): 127978266

約数列:

[1, 2, 3, 6, 9, 11, 13, 18, 22, 26, 33, 39, 66, 78, 99, 117, 121, 143, 198, 234, 242, 286, 363, 429, 726, 858, 1089, 1287, 1573, 2178, 2574, 2887, 3146, 4719, 5774, 8661, 9438, 14157, 17322, 25983, 28314, 31757, 37531, 51966, 63514, 75062, 95271, 112593, 190542, 225186, 285813, 337779, 349327, 412841, 571626, 675558, 698654, 825682, 1047981, 1238523, 2095962, 2477046, 3143943, 3715569, 4541251, 6287886, 7431138, 9082502, 13623753, 27247506, 40871259, 81742518]

約数ペア:

[(1, 81742518), (2, 40871259), (3, 27247506), (6, 13623753), (9, 9082502), (11, 7431138), (13, 6287886), (18, 4541251), (22, 3715569), (26, 3143943), (33, 2477046), (39, 2095962), (66, 1238523), (78, 1047981), (99, 825682), (117, 698654), (121, 675558), (143, 571626), (198, 412841), (234, 349327), (242, 337779), (286, 285813), (363, 225186), (429, 190542), (726, 112593), (858, 95271), (1089, 75062), (1287, 63514), (1573, 51966), (2178, 37531), (2574, 31757), (2887, 28314), (3146, 25983), (4719, 17322), (5774, 14157), (8661, 9438)]