18969220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{49919}}^1$

素因数の和:49947

約数の個数: 24

約数和(自身を含む): 41932800

約数和(自身を除く): 22963580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 49919, 99838, 199676, 249595, 499190, 948461, 998380, 1896922, 3793844, 4742305, 9484610, 18969220]

約数ペア:

[(1, 18969220), (2, 9484610), (4, 4742305), (5, 3793844), (10, 1896922), (19, 998380), (20, 948461), (38, 499190), (76, 249595), (95, 199676), (190, 99838), (380, 49919)]