31400780

素因数分解:

$2^2\times 5^1\times {\mathrm{977}}^1\times {\mathrm{1607}}^1$

素因数の和:2593

約数の個数: 24

約数和(自身を含む): 66050208

約数和(自身を除く): 34649428

約数列:

[1, 2, 4, 5, 10, 20, 977, 1607, 1954, 3214, 3908, 4885, 6428, 8035, 9770, 16070, 19540, 32140, 1570039, 3140078, 6280156, 7850195, 15700390, 31400780]

約数ペア:

[(1, 31400780), (2, 15700390), (4, 7850195), (5, 6280156), (10, 3140078), (20, 1570039), (977, 32140), (1607, 19540), (1954, 16070), (3214, 9770), (3908, 8035), (4885, 6428)]