648021275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{10567}}^1$

素因数の和:10811

約数の個数: 24

約数和(自身を含む): 880610304

約数和(自身を除く): 232589029

約数列:

[1, 5, 11, 25, 55, 223, 275, 1115, 2453, 5575, 10567, 12265, 52835, 61325, 116237, 264175, 581185, 2356441, 2905925, 11782205, 25920851, 58911025, 129604255, 648021275]

約数ペア:

[(1, 648021275), (5, 129604255), (11, 58911025), (25, 25920851), (55, 11782205), (223, 2905925), (275, 2356441), (1115, 581185), (2453, 264175), (5575, 116237), (10567, 61325), (12265, 52835)]