19893500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{3617}}^1$

素因数の和:3647

約数の個数: 48

約数和(自身を含む): 47410272

約数和(自身を除く): 27516772

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 125, 220, 250, 275, 500, 550, 1100, 1375, 2750, 3617, 5500, 7234, 14468, 18085, 36170, 39787, 72340, 79574, 90425, 159148, 180850, 198935, 361700, 397870, 452125, 795740, 904250, 994675, 1808500, 1989350, 3978700, 4973375, 9946750, 19893500]

約数ペア:

[(1, 19893500), (2, 9946750), (4, 4973375), (5, 3978700), (10, 1989350), (11, 1808500), (20, 994675), (22, 904250), (25, 795740), (44, 452125), (50, 397870), (55, 361700), (100, 198935), (110, 180850), (125, 159148), (220, 90425), (250, 79574), (275, 72340), (500, 39787), (550, 36170), (1100, 18085), (1375, 14468), (2750, 7234), (3617, 5500)]