77875880

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{9227}}^1$

素因数の和:9449

約数の個数: 32

約数和(自身を含む): 176070240

約数和(自身を除く): 98194360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 4220, 8440, 9227, 18454, 36908, 46135, 73816, 92270, 184540, 369080, 1946897, 3893794, 7787588, 9734485, 15575176, 19468970, 38937940, 77875880]

約数ペア:

[(1, 77875880), (2, 38937940), (4, 19468970), (5, 15575176), (8, 9734485), (10, 7787588), (20, 3893794), (40, 1946897), (211, 369080), (422, 184540), (844, 92270), (1055, 73816), (1688, 46135), (2110, 36908), (4220, 18454), (8440, 9227)]