19767880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{44927}}^1$

素因数の和:44949

約数の個数: 32

約数和(自身を含む): 48522240

約数和(自身を除く): 28754360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 44927, 89854, 179708, 224635, 359416, 449270, 494197, 898540, 988394, 1797080, 1976788, 2470985, 3953576, 4941970, 9883940, 19767880]

約数ペア:

[(1, 19767880), (2, 9883940), (4, 4941970), (5, 3953576), (8, 2470985), (10, 1976788), (11, 1797080), (20, 988394), (22, 898540), (40, 494197), (44, 449270), (55, 359416), (88, 224635), (110, 179708), (220, 89854), (440, 44927)]