28378360

素因数分解:

$2^3\times 5^1\times {\mathrm{547}}^1\times {\mathrm{1297}}^1$

素因数の和:1855

約数の個数: 32

約数和(自身を含む): 64017360

約数和(自身を除く): 35639000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 547, 1094, 1297, 2188, 2594, 2735, 4376, 5188, 5470, 6485, 10376, 10940, 12970, 21880, 25940, 51880, 709459, 1418918, 2837836, 3547295, 5675672, 7094590, 14189180, 28378360]

約数ペア:

[(1, 28378360), (2, 14189180), (4, 7094590), (5, 5675672), (8, 3547295), (10, 2837836), (20, 1418918), (40, 709459), (547, 51880), (1094, 25940), (1297, 21880), (2188, 12970), (2594, 10940), (2735, 10376), (4376, 6485), (5188, 5470)]