20152025

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{347}}^1$

素因数の和:481

約数の個数: 24

約数和(自身を含む): 26409024

約数和(自身を除く): 6256999

約数列:

[1, 5, 23, 25, 101, 115, 347, 505, 575, 1735, 2323, 2525, 7981, 8675, 11615, 35047, 39905, 58075, 175235, 199525, 806081, 876175, 4030405, 20152025]

約数ペア:

[(1, 20152025), (5, 4030405), (23, 876175), (25, 806081), (101, 199525), (115, 175235), (347, 58075), (505, 39905), (575, 35047), (1735, 11615), (2323, 8675), (2525, 7981)]