147820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1$

素因数の和:417

約数の個数: 24

約数和(自身を含む): 327600

約数和(自身を除く): 179780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 389, 778, 1556, 1945, 3890, 7391, 7780, 14782, 29564, 36955, 73910, 147820]

約数ペア:

[(1, 147820), (2, 73910), (4, 36955), (5, 29564), (10, 14782), (19, 7780), (20, 7391), (38, 3890), (76, 1945), (95, 1556), (190, 778), (380, 389)]