20831425

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{487}}^1$

素因数の和:585

約数の個数: 24

約数和(自身を含む): 27230400

約数和(自身を除く): 6398975

約数列:

[1, 5, 25, 29, 59, 145, 295, 487, 725, 1475, 1711, 2435, 8555, 12175, 14123, 28733, 42775, 70615, 143665, 353075, 718325, 833257, 4166285, 20831425]

約数ペア:

[(1, 20831425), (5, 4166285), (25, 833257), (29, 718325), (59, 353075), (145, 143665), (295, 70615), (487, 42775), (725, 28733), (1475, 14123), (1711, 12175), (2435, 8555)]