28659560

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{3637}}^1$

素因数の和:3845

約数の個数: 32

約数和(自身を含む): 64829160

約数和(自身を除く): 36169600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3637, 3940, 7274, 7880, 14548, 18185, 29096, 36370, 72740, 145480, 716489, 1432978, 2865956, 3582445, 5731912, 7164890, 14329780, 28659560]

約数ペア:

[(1, 28659560), (2, 14329780), (4, 7164890), (5, 5731912), (8, 3582445), (10, 2865956), (20, 1432978), (40, 716489), (197, 145480), (394, 72740), (788, 36370), (985, 29096), (1576, 18185), (1970, 14548), (3637, 7880), (3940, 7274)]