129492040

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{16433}}^1$

素因数の和:16641

約数の個数: 32

約数和(自身を含む): 292853880

約数和(自身を除く): 163361840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 7880, 16433, 32866, 65732, 82165, 131464, 164330, 328660, 657320, 3237301, 6474602, 12949204, 16186505, 25898408, 32373010, 64746020, 129492040]

約数ペア:

[(1, 129492040), (2, 64746020), (4, 32373010), (5, 25898408), (8, 16186505), (10, 12949204), (20, 6474602), (40, 3237301), (197, 657320), (394, 328660), (788, 164330), (985, 131464), (1576, 82165), (1970, 65732), (3940, 32866), (7880, 16433)]