201020525

素因数分解:

$5^2\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{1039}}^1$

素因数の和:1229

約数の個数: 24

約数和(自身を含む): 255340800

約数和(自身を除く): 54320275

約数列:

[1, 5, 25, 71, 109, 355, 545, 1039, 1775, 2725, 5195, 7739, 25975, 38695, 73769, 113251, 193475, 368845, 566255, 1844225, 2831275, 8040821, 40204105, 201020525]

約数ペア:

[(1, 201020525), (5, 40204105), (25, 8040821), (71, 2831275), (109, 1844225), (355, 566255), (545, 368845), (1039, 193475), (1775, 113251), (2725, 73769), (5195, 38695), (7739, 25975)]