18829225

素因数分解:

$5^2\times {\mathrm{421}}^1\times {\mathrm{1789}}^1$

素因数の和:2220

約数の個数: 12

約数和(自身を含む): 23416780

約数和(自身を除く): 4587555

約数列:

[1, 5, 25, 421, 1789, 2105, 8945, 10525, 44725, 753169, 3765845, 18829225]

約数ペア:

[(1, 18829225), (5, 3765845), (25, 753169), (421, 44725), (1789, 10525), (2105, 8945)]