18811930

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{919}}^1$

素因数の和:1038

約数の個数: 32

約数和(自身を含む): 35769600

約数和(自身を除く): 16957670

約数列:

[1, 2, 5, 10, 23, 46, 89, 115, 178, 230, 445, 890, 919, 1838, 2047, 4094, 4595, 9190, 10235, 20470, 21137, 42274, 81791, 105685, 163582, 211370, 408955, 817910, 1881193, 3762386, 9405965, 18811930]

約数ペア:

[(1, 18811930), (2, 9405965), (5, 3762386), (10, 1881193), (23, 817910), (46, 408955), (89, 211370), (115, 163582), (178, 105685), (230, 81791), (445, 42274), (890, 21137), (919, 20470), (1838, 10235), (2047, 9190), (4094, 4595)]