256820060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1834429}}^1$

素因数の和:1834445

約数の個数: 24

約数和(自身を含む): 616368480

約数和(自身を除く): 359548420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1834429, 3668858, 7337716, 9172145, 12841003, 18344290, 25682006, 36688580, 51364012, 64205015, 128410030, 256820060]

約数ペア:

[(1, 256820060), (2, 128410030), (4, 64205015), (5, 51364012), (7, 36688580), (10, 25682006), (14, 18344290), (20, 12841003), (28, 9172145), (35, 7337716), (70, 3668858), (140, 1834429)]