198781225

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{487}}^1\times {\mathrm{563}}^1$

素因数の和:1089

約数の個数: 24

約数和(自身を含む): 255965760

約数和(自身を除く): 57184535

約数列:

[1, 5, 25, 29, 145, 487, 563, 725, 2435, 2815, 12175, 14075, 14123, 16327, 70615, 81635, 274181, 353075, 408175, 1370905, 6854525, 7951249, 39756245, 198781225]

約数ペア:

[(1, 198781225), (5, 39756245), (25, 7951249), (29, 6854525), (145, 1370905), (487, 408175), (563, 353075), (725, 274181), (2435, 81635), (2815, 70615), (12175, 16327), (14075, 14123)]