66888328

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{20747}}^1$

素因数の和:20797

約数の個数: 32

約数和(自身を含む): 139426560

約数和(自身を除く): 72538232

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 20747, 41494, 82988, 165976, 269711, 539422, 643157, 1078844, 1286314, 2157688, 2572628, 5145256, 8361041, 16722082, 33444164, 66888328]

約数ペア:

[(1, 66888328), (2, 33444164), (4, 16722082), (8, 8361041), (13, 5145256), (26, 2572628), (31, 2157688), (52, 1286314), (62, 1078844), (104, 643157), (124, 539422), (248, 269711), (403, 165976), (806, 82988), (1612, 41494), (3224, 20747)]