18939990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{179}}^1\times {\mathrm{3527}}^1$

素因数の和:3716

約数の個数: 32

約数和(自身を含む): 45722880

約数和(自身を除く): 26782890

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 179, 358, 537, 895, 1074, 1790, 2685, 3527, 5370, 7054, 10581, 17635, 21162, 35270, 52905, 105810, 631333, 1262666, 1893999, 3156665, 3787998, 6313330, 9469995, 18939990]

約数ペア:

[(1, 18939990), (2, 9469995), (3, 6313330), (5, 3787998), (6, 3156665), (10, 1893999), (15, 1262666), (30, 631333), (179, 105810), (358, 52905), (537, 35270), (895, 21162), (1074, 17635), (1790, 10581), (2685, 7054), (3527, 5370)]