661013072

素因数分解:

$2^4\times {\mathrm{1019}}^1\times {\mathrm{40543}}^1$

素因数の和:41570

約数の個数: 20

約数和(自身を含む): 1282001280

約数和(自身を除く): 620988208

約数列:

[1, 2, 4, 8, 16, 1019, 2038, 4076, 8152, 16304, 40543, 81086, 162172, 324344, 648688, 41313317, 82626634, 165253268, 330506536, 661013072]

約数ペア:

[(1, 661013072), (2, 330506536), (4, 165253268), (8, 82626634), (16, 41313317), (1019, 648688), (2038, 324344), (4076, 162172), (8152, 81086), (16304, 40543)]