28277140

素因数分解:

$2^2\times 5^1\times {\mathrm{1123}}^1\times {\mathrm{1259}}^1$

素因数の和:2391

約数の個数: 24

約数和(自身を含む): 59482080

約数和(自身を除く): 31204940

約数列:

[1, 2, 4, 5, 10, 20, 1123, 1259, 2246, 2518, 4492, 5036, 5615, 6295, 11230, 12590, 22460, 25180, 1413857, 2827714, 5655428, 7069285, 14138570, 28277140]

約数ペア:

[(1, 28277140), (2, 14138570), (4, 7069285), (5, 5655428), (10, 2827714), (20, 1413857), (1123, 25180), (1259, 22460), (2246, 12590), (2518, 11230), (4492, 6295), (5036, 5615)]