87015820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{228989}}^1$

素因数の和:229017

約数の個数: 24

約数和(自身を含む): 192351600

約数和(自身を除く): 105335780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 228989, 457978, 915956, 1144945, 2289890, 4350791, 4579780, 8701582, 17403164, 21753955, 43507910, 87015820]

約数ペア:

[(1, 87015820), (2, 43507910), (4, 21753955), (5, 17403164), (10, 8701582), (19, 4579780), (20, 4350791), (38, 2289890), (76, 1144945), (95, 915956), (190, 457978), (380, 228989)]