28191270.000000000

素因数分解:

$2^3\times 7^1\times {\mathrm{907}}^1\times {\mathrm{2437}}^1$

素因数の和:3357

約数の個数: 32

約数和(自身を含む): 265644480

約数和(自身を除く): 141864376

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 907, 1814, 2437, 3628, 4874, 6349, 7256, 9748, 12698, 17059, 19496, 25396, 34118, 50792, 68236, 136472, 2210359, 4420718, 8841436, 15472513, 17682872, 30945026, 61890052, 123780104]

約数ペア:

[(1, 123780104), (2, 61890052), (4, 30945026), (7, 17682872), (8, 15472513), (14, 8841436), (28, 4420718), (56, 2210359), (907, 136472), (1814, 68236), (2437, 50792), (3628, 34118), (4874, 25396), (6349, 19496), (7256, 17059), (9748, 12698)]