18032740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{81967}}^1$

素因数の和:81987

約数の個数: 24

約数和(自身を含む): 41311872

約数和(自身を除く): 23279132

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 81967, 163934, 327868, 409835, 819670, 901637, 1639340, 1803274, 3606548, 4508185, 9016370, 18032740]

約数ペア:

[(1, 18032740), (2, 9016370), (4, 4508185), (5, 3606548), (10, 1803274), (11, 1639340), (20, 901637), (22, 819670), (44, 409835), (55, 327868), (110, 163934), (220, 81967)]