385340425

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{42697}}^1$

素因数の和:42745

約数の個数: 18

約数和(自身を含む): 504306078

約数和(自身を除く): 118965653

約数列:

[1, 5, 19, 25, 95, 361, 475, 1805, 9025, 42697, 213485, 811243, 1067425, 4056215, 15413617, 20281075, 77068085, 385340425]

約数ペア:

[(1, 385340425), (5, 77068085), (19, 20281075), (25, 15413617), (95, 4056215), (361, 1067425), (475, 811243), (1805, 213485), (9025, 42697)]