20810343460

素因数分解:

$2^2\times 5^1\times {\mathrm{739}}^1\times {\mathrm{1408007}}^1$

素因数の和:1408755

約数の個数: 24

約数和(自身を含む): 43760888640

約数和(自身を除く): 22950545180

約数列:

[1, 2, 4, 5, 10, 20, 739, 1478, 2956, 3695, 7390, 14780, 1408007, 2816014, 5632028, 7040035, 14080070, 28160140, 1040517173, 2081034346, 4162068692, 5202585865, 10405171730, 20810343460]

約数ペア:

[(1, 20810343460), (2, 10405171730), (4, 5202585865), (5, 4162068692), (10, 2081034346), (20, 1040517173), (739, 28160140), (1478, 14080070), (2956, 7040035), (3695, 5632028), (7390, 2816014), (14780, 1408007)]