25813940

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{8221}}^1$

素因数の和:8387

約数の個数: 24

約数和(自身を含む): 54561192

約数和(自身を除く): 28747252

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 8221, 16442, 32884, 41105, 82210, 164420, 1290697, 2581394, 5162788, 6453485, 12906970, 25813940]

約数ペア:

[(1, 25813940), (2, 12906970), (4, 6453485), (5, 5162788), (10, 2581394), (20, 1290697), (157, 164420), (314, 82210), (628, 41105), (785, 32884), (1570, 16442), (3140, 8221)]