18937980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{105211}}^1$

素因数の和:105226

約数の個数: 36

約数和(自身を含む): 57445752

約数和(自身を除く): 38507772

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 105211, 210422, 315633, 420844, 526055, 631266, 946899, 1052110, 1262532, 1578165, 1893798, 2104220, 3156330, 3787596, 4734495, 6312660, 9468990, 18937980]

約数ペア:

[(1, 18937980), (2, 9468990), (3, 6312660), (4, 4734495), (5, 3787596), (6, 3156330), (9, 2104220), (10, 1893798), (12, 1578165), (15, 1262532), (18, 1052110), (20, 946899), (30, 631266), (36, 526055), (45, 420844), (60, 315633), (90, 210422), (180, 105211)]