20004225

素因数分解:

$3^1\times 5^2\times {\mathrm{109}}^1\times {\mathrm{2447}}^1$

素因数の和:2569

約数の個数: 24

約数和(自身を含む): 33390720

約数和(自身を除く): 13386495

約数列:

[1, 3, 5, 15, 25, 75, 109, 327, 545, 1635, 2447, 2725, 7341, 8175, 12235, 36705, 61175, 183525, 266723, 800169, 1333615, 4000845, 6668075, 20004225]

約数ペア:

[(1, 20004225), (3, 6668075), (5, 4000845), (15, 1333615), (25, 800169), (75, 266723), (109, 183525), (327, 61175), (545, 36705), (1635, 12235), (2447, 8175), (2725, 7341)]