2017880

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{827}}^1$

素因数の和:899

約数の個数: 32

約数和(自身を含む): 4620240

約数和(自身を除く): 2602360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 827, 1220, 1654, 2440, 3308, 4135, 6616, 8270, 16540, 33080, 50447, 100894, 201788, 252235, 403576, 504470, 1008940, 2017880]

約数ペア:

[(1, 2017880), (2, 1008940), (4, 504470), (5, 403576), (8, 252235), (10, 201788), (20, 100894), (40, 50447), (61, 33080), (122, 16540), (244, 8270), (305, 6616), (488, 4135), (610, 3308), (827, 2440), (1220, 1654)]