25215860

素因数分解:

$2^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{2477}}^1$

素因数の和:2995

約数の個数: 24

約数和(自身を含む): 53078760

約数和(自身を除く): 27862900

約数列:

[1, 2, 4, 5, 10, 20, 509, 1018, 2036, 2477, 2545, 4954, 5090, 9908, 10180, 12385, 24770, 49540, 1260793, 2521586, 5043172, 6303965, 12607930, 25215860]

約数ペア:

[(1, 25215860), (2, 12607930), (4, 6303965), (5, 5043172), (10, 2521586), (20, 1260793), (509, 49540), (1018, 24770), (2036, 12385), (2477, 10180), (2545, 9908), (4954, 5090)]