13028855

素因数分解:

$5^1\times 7^3\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:204

約数の個数: 32

約数和(自身を含む): 18662400

約数和(自身を除く): 5633545

約数列:

[1, 5, 7, 35, 49, 71, 107, 245, 343, 355, 497, 535, 749, 1715, 2485, 3479, 3745, 5243, 7597, 17395, 24353, 26215, 36701, 37985, 53179, 121765, 183505, 265895, 372253, 1861265, 2605771, 13028855]

約数ペア:

[(1, 13028855), (5, 2605771), (7, 1861265), (35, 372253), (49, 265895), (71, 183505), (107, 121765), (245, 53179), (343, 37985), (355, 36701), (497, 26215), (535, 24353), (749, 17395), (1715, 7597), (2485, 5243), (3479, 3745)]