201378740

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{20507}}^1$

素因数の和:21007

約数の個数: 24

約数和(自身を含む): 423777312

約数和(自身を除く): 222398572

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 4910, 9820, 20507, 41014, 82028, 102535, 205070, 410140, 10068937, 20137874, 40275748, 50344685, 100689370, 201378740]

約数ペア:

[(1, 201378740), (2, 100689370), (4, 50344685), (5, 40275748), (10, 20137874), (20, 10068937), (491, 410140), (982, 205070), (1964, 102535), (2455, 82028), (4910, 41014), (9820, 20507)]