878448868

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{89}}^1\times {\mathrm{20393}}^1$

素因数の和:20508

約数の個数: 36

約数和(自身を含む): 1708813260

約数和(自身を除く): 830364392

約数列:

[1, 2, 4, 11, 22, 44, 89, 121, 178, 242, 356, 484, 979, 1958, 3916, 10769, 20393, 21538, 40786, 43076, 81572, 224323, 448646, 897292, 1814977, 2467553, 3629954, 4935106, 7259908, 9870212, 19964747, 39929494, 79858988, 219612217, 439224434, 878448868]

約数ペア:

[(1, 878448868), (2, 439224434), (4, 219612217), (11, 79858988), (22, 39929494), (44, 19964747), (89, 9870212), (121, 7259908), (178, 4935106), (242, 3629954), (356, 2467553), (484, 1814977), (979, 897292), (1958, 448646), (3916, 224323), (10769, 81572), (20393, 43076), (21538, 40786)]