257753158

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{1607}}^1$

素因数の和:1852

約数の個数: 32

約数和(自身を含む): 432230400

約数和(自身を除く): 174477242

約数列:

[1, 2, 13, 26, 31, 62, 199, 398, 403, 806, 1607, 2587, 3214, 5174, 6169, 12338, 20891, 41782, 49817, 80197, 99634, 160394, 319793, 639586, 647621, 1295242, 4157309, 8314618, 9913583, 19827166, 128876579, 257753158]

約数ペア:

[(1, 257753158), (2, 128876579), (13, 19827166), (26, 9913583), (31, 8314618), (62, 4157309), (199, 1295242), (398, 647621), (403, 639586), (806, 319793), (1607, 160394), (2587, 99634), (3214, 80197), (5174, 49817), (6169, 41782), (12338, 20891)]