1291168

素因数分解:

$2^5\times {\mathrm{157}}^1\times {\mathrm{257}}^1$

素因数の和:424

約数の個数: 24

約数和(自身を含む): 2568132

約数和(自身を除く): 1276964

約数列:

[1, 2, 4, 8, 16, 32, 157, 257, 314, 514, 628, 1028, 1256, 2056, 2512, 4112, 5024, 8224, 40349, 80698, 161396, 322792, 645584, 1291168]

約数ペア:

[(1, 1291168), (2, 645584), (4, 322792), (8, 161396), (16, 80698), (32, 40349), (157, 8224), (257, 5024), (314, 4112), (514, 2512), (628, 2056), (1028, 1256)]