278157315

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{827}}^1\times {\mathrm{1319}}^1$

素因数の和:2171

約数の個数: 32

約数和(自身を含む): 472158720

約数和(自身を除く): 194001405

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 827, 1319, 2481, 3957, 4135, 6595, 12405, 14059, 19785, 22423, 42177, 67269, 70295, 112115, 210885, 336345, 1090813, 3272439, 5454065, 16362195, 18543821, 55631463, 92719105, 278157315]

約数ペア:

[(1, 278157315), (3, 92719105), (5, 55631463), (15, 18543821), (17, 16362195), (51, 5454065), (85, 3272439), (255, 1090813), (827, 336345), (1319, 210885), (2481, 112115), (3957, 70295), (4135, 67269), (6595, 42177), (12405, 22423), (14059, 19785)]