2910660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{349}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 8232000

約数和(自身を除く): 5321340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 139, 278, 349, 417, 556, 695, 698, 834, 1047, 1390, 1396, 1668, 1745, 2085, 2094, 2780, 3490, 4170, 4188, 5235, 6980, 8340, 10470, 20940, 48511, 97022, 145533, 194044, 242555, 291066, 485110, 582132, 727665, 970220, 1455330, 2910660]

約数ペア:

[(1, 2910660), (2, 1455330), (3, 970220), (4, 727665), (5, 582132), (6, 485110), (10, 291066), (12, 242555), (15, 194044), (20, 145533), (30, 97022), (60, 48511), (139, 20940), (278, 10470), (349, 8340), (417, 6980), (556, 5235), (695, 4188), (698, 4170), (834, 3490), (1047, 2780), (1390, 2094), (1396, 2085), (1668, 1745)]