20285025

素因数分解:

$3^1\times 5^2\times {\mathrm{307}}^1\times {\mathrm{881}}^1$

素因数の和:1201

約数の個数: 24

約数和(自身を含む): 33685344

約数和(自身を除く): 13400319

約数列:

[1, 3, 5, 15, 25, 75, 307, 881, 921, 1535, 2643, 4405, 4605, 7675, 13215, 22025, 23025, 66075, 270467, 811401, 1352335, 4057005, 6761675, 20285025]

約数ペア:

[(1, 20285025), (3, 6761675), (5, 4057005), (15, 1352335), (25, 811401), (75, 270467), (307, 66075), (881, 23025), (921, 22025), (1535, 13215), (2643, 7675), (4405, 4605)]