81229040

素因数分解:

$2^4\times 5^1\times {\mathrm{1015363}}^1$

素因数の和:1015376

約数の個数: 20

約数和(自身を含む): 188857704

約数和(自身を除く): 107628664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1015363, 2030726, 4061452, 5076815, 8122904, 10153630, 16245808, 20307260, 40614520, 81229040]

約数ペア:

[(1, 81229040), (2, 40614520), (4, 20307260), (5, 16245808), (8, 10153630), (10, 8122904), (16, 5076815), (20, 4061452), (40, 2030726), (80, 1015363)]