2649880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2137}}^1$

素因数の和:2179

約数の個数: 32

約数和(自身を含む): 6157440

約数和(自身を除く): 3507560

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 2137, 4274, 8548, 10685, 17096, 21370, 42740, 66247, 85480, 132494, 264988, 331235, 529976, 662470, 1324940, 2649880]

約数ペア:

[(1, 2649880), (2, 1324940), (4, 662470), (5, 529976), (8, 331235), (10, 264988), (20, 132494), (31, 85480), (40, 66247), (62, 42740), (124, 21370), (155, 17096), (248, 10685), (310, 8548), (620, 4274), (1240, 2137)]