19189980

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{35537}}^1$

素因数の和:35555

約数の個数: 48

約数和(自身を含む): 59703840

約数和(自身を除く): 40513860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 35537, 71074, 106611, 142148, 177685, 213222, 319833, 355370, 426444, 533055, 639666, 710740, 959499, 1066110, 1279332, 1599165, 1918998, 2132220, 3198330, 3837996, 4797495, 6396660, 9594990, 19189980]

約数ペア:

[(1, 19189980), (2, 9594990), (3, 6396660), (4, 4797495), (5, 3837996), (6, 3198330), (9, 2132220), (10, 1918998), (12, 1599165), (15, 1279332), (18, 1066110), (20, 959499), (27, 710740), (30, 639666), (36, 533055), (45, 426444), (54, 355370), (60, 319833), (90, 213222), (108, 177685), (135, 142148), (180, 106611), (270, 71074), (540, 35537)]