82780976

素因数分解:

$2^4\times {\mathrm{197}}^1\times {\mathrm{26263}}^1$

素因数の和:26468

約数の個数: 20

約数和(自身を含む): 161208432

約数和(自身を除く): 78427456

約数列:

[1, 2, 4, 8, 16, 197, 394, 788, 1576, 3152, 26263, 52526, 105052, 210104, 420208, 5173811, 10347622, 20695244, 41390488, 82780976]

約数ペア:

[(1, 82780976), (2, 41390488), (4, 20695244), (8, 10347622), (16, 5173811), (197, 420208), (394, 210104), (788, 105052), (1576, 52526), (3152, 26263)]