25631780

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{12689}}^1$

素因数の和:12799

約数の個数: 24

約数和(自身を含む): 54363960

約数和(自身を除く): 28732180

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 12689, 25378, 50756, 63445, 126890, 253780, 1281589, 2563178, 5126356, 6407945, 12815890, 25631780]

約数ペア:

[(1, 25631780), (2, 12815890), (4, 6407945), (5, 5126356), (10, 2563178), (20, 1281589), (101, 253780), (202, 126890), (404, 63445), (505, 50756), (1010, 25378), (2020, 12689)]