66890740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{477791}}^1$

素因数の和:477807

約数の個数: 24

約数和(自身を含む): 160538112

約数和(自身を除く): 93647372

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 477791, 955582, 1911164, 2388955, 3344537, 4777910, 6689074, 9555820, 13378148, 16722685, 33445370, 66890740]

約数ペア:

[(1, 66890740), (2, 33445370), (4, 16722685), (5, 13378148), (7, 9555820), (10, 6689074), (14, 4777910), (20, 3344537), (28, 2388955), (35, 1911164), (70, 955582), (140, 477791)]