78840008

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{557}}^1\times {\mathrm{1361}}^1$

素因数の和:1937

約数の個数: 32

約数和(自身を含む): 159599160

約数和(自身を除く): 80759152

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 557, 1114, 1361, 2228, 2722, 4456, 5444, 7241, 10888, 14482, 17693, 28964, 35386, 57928, 70772, 141544, 758077, 1516154, 3032308, 6064616, 9855001, 19710002, 39420004, 78840008]

約数ペア:

[(1, 78840008), (2, 39420004), (4, 19710002), (8, 9855001), (13, 6064616), (26, 3032308), (52, 1516154), (104, 758077), (557, 141544), (1114, 70772), (1361, 57928), (2228, 35386), (2722, 28964), (4456, 17693), (5444, 14482), (7241, 10888)]