210960425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{20939}}^1$

素因数の和:20993

約数の個数: 24

約数和(自身を含む): 290814720

約数和(自身を除く): 79854295

約数列:

[1, 5, 13, 25, 31, 65, 155, 325, 403, 775, 2015, 10075, 20939, 104695, 272207, 523475, 649109, 1361035, 3245545, 6805175, 8438417, 16227725, 42192085, 210960425]

約数ペア:

[(1, 210960425), (5, 42192085), (13, 16227725), (25, 8438417), (31, 6805175), (65, 3245545), (155, 1361035), (325, 649109), (403, 523475), (775, 272207), (2015, 104695), (10075, 20939)]