258780274

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{20101}}^1$

素因数の和:20301

約数の個数: 16

約数和(自身を含む): 400190616

約数和(自身を除く): 141410342

約数列:

[1, 2, 41, 82, 157, 314, 6437, 12874, 20101, 40202, 824141, 1648282, 3155857, 6311714, 129390137, 258780274]

約数ペア:

[(1, 258780274), (2, 129390137), (41, 6311714), (82, 3155857), (157, 1648282), (314, 824141), (6437, 40202), (12874, 20101)]