19850020

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{5737}}^1$

素因数の和:5919

約数の個数: 24

約数和(自身を含む): 41933304

約数和(自身を除く): 22083284

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 692, 865, 1730, 3460, 5737, 11474, 22948, 28685, 57370, 114740, 992501, 1985002, 3970004, 4962505, 9925010, 19850020]

約数ペア:

[(1, 19850020), (2, 9925010), (4, 4962505), (5, 3970004), (10, 1985002), (20, 992501), (173, 114740), (346, 57370), (692, 28685), (865, 22948), (1730, 11474), (3460, 5737)]