19465840

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{4591}}^1$

素因数の和:4657

約数の個数: 40

約数和(自身を含む): 46122048

約数和(自身を除く): 26656208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 4591, 9182, 18364, 22955, 36728, 45910, 73456, 91820, 183640, 243323, 367280, 486646, 973292, 1216615, 1946584, 2433230, 3893168, 4866460, 9732920, 19465840]

約数ペア:

[(1, 19465840), (2, 9732920), (4, 4866460), (5, 3893168), (8, 2433230), (10, 1946584), (16, 1216615), (20, 973292), (40, 486646), (53, 367280), (80, 243323), (106, 183640), (212, 91820), (265, 73456), (424, 45910), (530, 36728), (848, 22955), (1060, 18364), (2120, 9182), (4240, 4591)]