18082020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{27397}}^1$

素因数の和:27420

約数の個数: 48

約数和(自身を含む): 55234368

約数和(自身を除く): 37152348

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 27397, 54794, 82191, 109588, 136985, 164382, 273970, 301367, 328764, 410955, 547940, 602734, 821910, 904101, 1205468, 1506835, 1643820, 1808202, 3013670, 3616404, 4520505, 6027340, 9041010, 18082020]

約数ペア:

[(1, 18082020), (2, 9041010), (3, 6027340), (4, 4520505), (5, 3616404), (6, 3013670), (10, 1808202), (11, 1643820), (12, 1506835), (15, 1205468), (20, 904101), (22, 821910), (30, 602734), (33, 547940), (44, 410955), (55, 328764), (60, 301367), (66, 273970), (110, 164382), (132, 136985), (165, 109588), (220, 82191), (330, 54794), (660, 27397)]