28980425

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{563}}^1$

素因数の和:673

約数の個数: 24

約数和(自身を含む): 37765440

約数和(自身を除く): 8785015

約数列:

[1, 5, 25, 29, 71, 145, 355, 563, 725, 1775, 2059, 2815, 10295, 14075, 16327, 39973, 51475, 81635, 199865, 408175, 999325, 1159217, 5796085, 28980425]

約数ペア:

[(1, 28980425), (5, 5796085), (25, 1159217), (29, 999325), (71, 408175), (145, 199865), (355, 81635), (563, 51475), (725, 39973), (1775, 16327), (2059, 14075), (2815, 10295)]