221672020

素因数分解:

$2^2\times 5^1\times {\mathrm{277}}^1\times {\mathrm{40013}}^1$

素因数の和:40299

約数の個数: 24

約数和(自身を含む): 467203464

約数和(自身を除く): 245531444

約数列:

[1, 2, 4, 5, 10, 20, 277, 554, 1108, 1385, 2770, 5540, 40013, 80026, 160052, 200065, 400130, 800260, 11083601, 22167202, 44334404, 55418005, 110836010, 221672020]

約数ペア:

[(1, 221672020), (2, 110836010), (4, 55418005), (5, 44334404), (10, 22167202), (20, 11083601), (277, 800260), (554, 400130), (1108, 200065), (1385, 160052), (2770, 80026), (5540, 40013)]