257764772

素因数分解:

$2^2\times {\mathrm{23}}^2\times {\mathrm{61}}^1\times {\mathrm{1997}}^1$

素因数の和:2108

約数の個数: 36

約数和(自身を含む): 479523996

約数和(自身を除く): 221759224

約数列:

[1, 2, 4, 23, 46, 61, 92, 122, 244, 529, 1058, 1403, 1997, 2116, 2806, 3994, 5612, 7988, 32269, 45931, 64538, 91862, 121817, 129076, 183724, 243634, 487268, 1056413, 2112826, 2801791, 4225652, 5603582, 11207164, 64441193, 128882386, 257764772]

約数ペア:

[(1, 257764772), (2, 128882386), (4, 64441193), (23, 11207164), (46, 5603582), (61, 4225652), (92, 2801791), (122, 2112826), (244, 1056413), (529, 487268), (1058, 243634), (1403, 183724), (1997, 129076), (2116, 121817), (2806, 91862), (3994, 64538), (5612, 45931), (7988, 32269)]