18984740

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{5303}}^1$

素因数の和:5491

約数の個数: 24

約数和(自身を含む): 40098240

約数和(自身を除く): 21113500

約数列:

[1, 2, 4, 5, 10, 20, 179, 358, 716, 895, 1790, 3580, 5303, 10606, 21212, 26515, 53030, 106060, 949237, 1898474, 3796948, 4746185, 9492370, 18984740]

約数ペア:

[(1, 18984740), (2, 9492370), (4, 4746185), (5, 3796948), (10, 1898474), (20, 949237), (179, 106060), (358, 53030), (716, 26515), (895, 21212), (1790, 10606), (3580, 5303)]