262710721

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{557}}^1$

素因数の和:721

約数の個数: 32

約数和(自身を含む): 332978688

約数和(自身を除く): 70267967

約数列:

[1, 7, 13, 71, 73, 91, 497, 511, 557, 923, 949, 3899, 5183, 6461, 6643, 7241, 36281, 39547, 40661, 50687, 67379, 276829, 284627, 471653, 514111, 528593, 2886931, 3598777, 3700151, 20208517, 37530103, 262710721]

約数ペア:

[(1, 262710721), (7, 37530103), (13, 20208517), (71, 3700151), (73, 3598777), (91, 2886931), (497, 528593), (511, 514111), (557, 471653), (923, 284627), (949, 276829), (3899, 67379), (5183, 50687), (6461, 40661), (6643, 39547), (7241, 36281)]