208096385

素因数分解:

$5^1\times 7^3\times {\mathrm{71}}^1\times {\mathrm{1709}}^1$

素因数の和:1806

約数の個数: 32

約数和(自身を含む): 295488000

約数和(自身を除く): 87391615

約数列:

[1, 5, 7, 35, 49, 71, 245, 343, 355, 497, 1709, 1715, 2485, 3479, 8545, 11963, 17395, 24353, 59815, 83741, 121339, 121765, 418705, 586187, 606695, 849373, 2930935, 4246865, 5945611, 29728055, 41619277, 208096385]

約数ペア:

[(1, 208096385), (5, 41619277), (7, 29728055), (35, 5945611), (49, 4246865), (71, 2930935), (245, 849373), (343, 606695), (355, 586187), (497, 418705), (1709, 121765), (1715, 121339), (2485, 83741), (3479, 59815), (8545, 24353), (11963, 17395)]