256255489

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{4409}}^1$

素因数の和:4477

約数の個数: 24

約数和(自身を含む): 322600320

約数和(自身を除く): 66344831

約数列:

[1, 7, 19, 23, 133, 161, 361, 437, 2527, 3059, 4409, 8303, 30863, 58121, 83771, 101407, 586397, 709849, 1591649, 1926733, 11141543, 13487131, 36607927, 256255489]

約数ペア:

[(1, 256255489), (7, 36607927), (19, 13487131), (23, 11141543), (133, 1926733), (161, 1591649), (361, 709849), (437, 586397), (2527, 101407), (3059, 83771), (4409, 58121), (8303, 30863)]