28430140

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{6737}}^1$

素因数の和:6957

約数の個数: 24

約数和(自身を含む): 59995152

約数和(自身を除く): 31565012

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110, 4220, 6737, 13474, 26948, 33685, 67370, 134740, 1421507, 2843014, 5686028, 7107535, 14215070, 28430140]

約数ペア:

[(1, 28430140), (2, 14215070), (4, 7107535), (5, 5686028), (10, 2843014), (20, 1421507), (211, 134740), (422, 67370), (844, 33685), (1055, 26948), (2110, 13474), (4220, 6737)]