2000884040

素因数分解:

$2^3\times 5^1\times {\mathrm{2777}}^1\times {\mathrm{18013}}^1$

素因数の和:20801

約数の個数: 32

約数和(自身を含む): 4503860280

約数和(自身を除く): 2502976240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2777, 5554, 11108, 13885, 18013, 22216, 27770, 36026, 55540, 72052, 90065, 111080, 144104, 180130, 360260, 720520, 50022101, 100044202, 200088404, 250110505, 400176808, 500221010, 1000442020, 2000884040]

約数ペア:

[(1, 2000884040), (2, 1000442020), (4, 500221010), (5, 400176808), (8, 250110505), (10, 200088404), (20, 100044202), (40, 50022101), (2777, 720520), (5554, 360260), (11108, 180130), (13885, 144104), (18013, 111080), (22216, 90065), (27770, 72052), (36026, 55540)]