81285985

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1$

素因数の和:210

約数の個数: 48

約数和(自身を含む): 114624720

約数和(自身を除く): 33338735

約数列:

[1, 5, 11, 29, 41, 55, 113, 121, 145, 205, 319, 451, 565, 605, 1189, 1243, 1595, 2255, 3277, 3509, 4633, 4961, 5945, 6215, 13079, 13673, 16385, 17545, 23165, 24805, 36047, 50963, 65395, 68365, 134357, 143869, 180235, 254815, 396517, 560593, 671785, 719345, 1477927, 1982585, 2802965, 7389635, 16257197, 81285985]

約数ペア:

[(1, 81285985), (5, 16257197), (11, 7389635), (29, 2802965), (41, 1982585), (55, 1477927), (113, 719345), (121, 671785), (145, 560593), (205, 396517), (319, 254815), (451, 180235), (565, 143869), (605, 134357), (1189, 68365), (1243, 65395), (1595, 50963), (2255, 36047), (3277, 24805), (3509, 23165), (4633, 17545), (4961, 16385), (5945, 13673), (6215, 13079)]