20319156

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3947}}^1$

素因数の和:3981

約数の個数: 72

約数和(自身を含む): 60357024

約数和(自身を除く): 40037868

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 13, 18, 22, 26, 33, 36, 39, 44, 52, 66, 78, 99, 117, 132, 143, 156, 198, 234, 286, 396, 429, 468, 572, 858, 1287, 1716, 2574, 3947, 5148, 7894, 11841, 15788, 23682, 35523, 43417, 47364, 51311, 71046, 86834, 102622, 130251, 142092, 153933, 173668, 205244, 260502, 307866, 390753, 461799, 521004, 564421, 615732, 781506, 923598, 1128842, 1563012, 1693263, 1847196, 2257684, 3386526, 5079789, 6773052, 10159578, 20319156]

約数ペア:

[(1, 20319156), (2, 10159578), (3, 6773052), (4, 5079789), (6, 3386526), (9, 2257684), (11, 1847196), (12, 1693263), (13, 1563012), (18, 1128842), (22, 923598), (26, 781506), (33, 615732), (36, 564421), (39, 521004), (44, 461799), (52, 390753), (66, 307866), (78, 260502), (99, 205244), (117, 173668), (132, 153933), (143, 142092), (156, 130251), (198, 102622), (234, 86834), (286, 71046), (396, 51311), (429, 47364), (468, 43417), (572, 35523), (858, 23682), (1287, 15788), (1716, 11841), (2574, 7894), (3947, 5148)]