261515525

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{5051}}^1$

素因数の和:5189

約数の個数: 24

約数和(自身を含む): 344546400

約数和(自身を除く): 83030875

約数列:

[1, 5, 19, 25, 95, 109, 475, 545, 2071, 2725, 5051, 10355, 25255, 51775, 95969, 126275, 479845, 550559, 2399225, 2752795, 10460621, 13763975, 52303105, 261515525]

約数ペア:

[(1, 261515525), (5, 52303105), (19, 13763975), (25, 10460621), (95, 2752795), (109, 2399225), (475, 550559), (545, 479845), (2071, 126275), (2725, 95969), (5051, 51775), (10355, 25255)]