20146940840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38744117}}^1$

素因数の和:38744141

約数の個数: 32

約数和(自身を含む): 48817588680

約数和(自身を除く): 28670647840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 38744117, 77488234, 154976468, 193720585, 309952936, 387441170, 503673521, 774882340, 1007347042, 1549764680, 2014694084, 2518367605, 4029388168, 5036735210, 10073470420, 20146940840]

約数ペア:

[(1, 20146940840), (2, 10073470420), (4, 5036735210), (5, 4029388168), (8, 2518367605), (10, 2014694084), (13, 1549764680), (20, 1007347042), (26, 774882340), (40, 503673521), (52, 387441170), (65, 309952936), (104, 193720585), (130, 154976468), (260, 77488234), (520, 38744117)]