199947025

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{3491}}^1$

素因数の和:3609

約数の個数: 24

約数和(自身を含む): 259804800

約数和(自身を除く): 59857775

約数列:

[1, 5, 25, 29, 79, 145, 395, 725, 1975, 2291, 3491, 11455, 17455, 57275, 87275, 101239, 275789, 506195, 1378945, 2530975, 6894725, 7997881, 39989405, 199947025]

約数ペア:

[(1, 199947025), (5, 39989405), (25, 7997881), (29, 6894725), (79, 2530975), (145, 1378945), (395, 506195), (725, 275789), (1975, 101239), (2291, 87275), (3491, 57275), (11455, 17455)]