19870580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{52291}}^1$

素因数の和:52319

約数の個数: 24

約数和(自身を含む): 43925280

約数和(自身を除く): 24054700

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 52291, 104582, 209164, 261455, 522910, 993529, 1045820, 1987058, 3974116, 4967645, 9935290, 19870580]

約数ペア:

[(1, 19870580), (2, 9935290), (4, 4967645), (5, 3974116), (10, 1987058), (19, 1045820), (20, 993529), (38, 522910), (76, 261455), (95, 209164), (190, 104582), (380, 52291)]