256064570

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{6691}}^1$

素因数の和:6830

約数の個数: 32

約数和(自身を含む): 477005760

約数和(自身を除く): 220941190

約数列:

[1, 2, 5, 10, 43, 86, 89, 178, 215, 430, 445, 890, 3827, 6691, 7654, 13382, 19135, 33455, 38270, 66910, 287713, 575426, 595499, 1190998, 1438565, 2877130, 2977495, 5954990, 25606457, 51212914, 128032285, 256064570]

約数ペア:

[(1, 256064570), (2, 128032285), (5, 51212914), (10, 25606457), (43, 5954990), (86, 2977495), (89, 2877130), (178, 1438565), (215, 1190998), (430, 595499), (445, 575426), (890, 287713), (3827, 66910), (6691, 38270), (7654, 33455), (13382, 19135)]