81198756

素因数分解:

$2^2\times 3^2\times {\mathrm{53}}^1\times {\mathrm{42557}}^1$

素因数の和:42620

約数の個数: 36

約数和(自身を含む): 209130012

約数和(自身を除く): 127931256

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 53, 106, 159, 212, 318, 477, 636, 954, 1908, 42557, 85114, 127671, 170228, 255342, 383013, 510684, 766026, 1532052, 2255521, 4511042, 6766563, 9022084, 13533126, 20299689, 27066252, 40599378, 81198756]

約数ペア:

[(1, 81198756), (2, 40599378), (3, 27066252), (4, 20299689), (6, 13533126), (9, 9022084), (12, 6766563), (18, 4511042), (36, 2255521), (53, 1532052), (106, 766026), (159, 510684), (212, 383013), (318, 255342), (477, 170228), (636, 127671), (954, 85114), (1908, 42557)]