18705025

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{743}}^1$

素因数の和:825

約数の個数: 24

約数和(自身を含む): 24909120

約数和(自身を除く): 6204095

約数列:

[1, 5, 19, 25, 53, 95, 265, 475, 743, 1007, 1325, 3715, 5035, 14117, 18575, 25175, 39379, 70585, 196895, 352925, 748201, 984475, 3741005, 18705025]

約数ペア:

[(1, 18705025), (5, 3741005), (19, 984475), (25, 748201), (53, 352925), (95, 196895), (265, 70585), (475, 39379), (743, 25175), (1007, 18575), (1325, 14117), (3715, 5035)]