7780625

素因数分解:

$5^4\times {\mathrm{59}}^1\times {\mathrm{211}}^1$

素因数の和:290

約数の個数: 20

約数和(自身を含む): 9934320

約数和(自身を除く): 2153695

約数列:

[1, 5, 25, 59, 125, 211, 295, 625, 1055, 1475, 5275, 7375, 12449, 26375, 36875, 62245, 131875, 311225, 1556125, 7780625]

約数ペア:

[(1, 7780625), (5, 1556125), (25, 311225), (59, 131875), (125, 62245), (211, 36875), (295, 26375), (625, 12449), (1055, 7375), (1475, 5275)]