20648752

素因数分解:

$2^4\times {\mathrm{197}}^1\times {\mathrm{6551}}^1$

素因数の和:6756

約数の個数: 20

約数和(自身を含む): 40216176

約数和(自身を除く): 19567424

約数列:

[1, 2, 4, 8, 16, 197, 394, 788, 1576, 3152, 6551, 13102, 26204, 52408, 104816, 1290547, 2581094, 5162188, 10324376, 20648752]

約数ペア:

[(1, 20648752), (2, 10324376), (4, 5162188), (8, 2581094), (16, 1290547), (197, 104816), (394, 52408), (788, 26204), (1576, 13102), (3152, 6551)]