30897140

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{14173}}^1$

素因数の和:14291

約数の個数: 24

約数和(自身を含む): 65483880

約数和(自身を除く): 34586740

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 14173, 28346, 56692, 70865, 141730, 283460, 1544857, 3089714, 6179428, 7724285, 15448570, 30897140]

約数ペア:

[(1, 30897140), (2, 15448570), (4, 7724285), (5, 6179428), (10, 3089714), (20, 1544857), (109, 283460), (218, 141730), (436, 70865), (545, 56692), (1090, 28346), (2180, 14173)]