28811820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{433}}^1\times {\mathrm{1109}}^1$

素因数の和:1554

約数の個数: 48

約数和(自身を含む): 80932320

約数和(自身を除く): 52120500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 433, 866, 1109, 1299, 1732, 2165, 2218, 2598, 3327, 4330, 4436, 5196, 5545, 6495, 6654, 8660, 11090, 12990, 13308, 16635, 22180, 25980, 33270, 66540, 480197, 960394, 1440591, 1920788, 2400985, 2881182, 4801970, 5762364, 7202955, 9603940, 14405910, 28811820]

約数ペア:

[(1, 28811820), (2, 14405910), (3, 9603940), (4, 7202955), (5, 5762364), (6, 4801970), (10, 2881182), (12, 2400985), (15, 1920788), (20, 1440591), (30, 960394), (60, 480197), (433, 66540), (866, 33270), (1109, 25980), (1299, 22180), (1732, 16635), (2165, 13308), (2218, 12990), (2598, 11090), (3327, 8660), (4330, 6654), (4436, 6495), (5196, 5545)]