26784020

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{3181}}^1$

素因数の和:3611

約数の個数: 24

約数和(自身を含む): 56397768

約数和(自身を除く): 29613748

約数列:

[1, 2, 4, 5, 10, 20, 421, 842, 1684, 2105, 3181, 4210, 6362, 8420, 12724, 15905, 31810, 63620, 1339201, 2678402, 5356804, 6696005, 13392010, 26784020]

約数ペア:

[(1, 26784020), (2, 13392010), (4, 6696005), (5, 5356804), (10, 2678402), (20, 1339201), (421, 63620), (842, 31810), (1684, 15905), (2105, 12724), (3181, 8420), (4210, 6362)]