26990990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{15971}}^1$

素因数の和:16004

約数の個数: 24

約数和(自身を含む): 52611768

約数和(自身を除く): 25620778

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 15971, 31942, 79855, 159710, 207623, 415246, 1038115, 2076230, 2699099, 5398198, 13495495, 26990990]

約数ペア:

[(1, 26990990), (2, 13495495), (5, 5398198), (10, 2699099), (13, 2076230), (26, 1038115), (65, 415246), (130, 207623), (169, 159710), (338, 79855), (845, 31942), (1690, 15971)]