256540508

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{3797}}^1$

素因数の和:3954

約数の個数: 48

約数和(自身を含む): 544481280

約数和(自身を除く): 287940772

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 127, 133, 254, 266, 508, 532, 889, 1778, 2413, 3556, 3797, 4826, 7594, 9652, 15188, 16891, 26579, 33782, 53158, 67564, 72143, 106316, 144286, 288572, 482219, 505001, 964438, 1010002, 1928876, 2020004, 3375533, 6751066, 9162161, 13502132, 18324322, 36648644, 64135127, 128270254, 256540508]

約数ペア:

[(1, 256540508), (2, 128270254), (4, 64135127), (7, 36648644), (14, 18324322), (19, 13502132), (28, 9162161), (38, 6751066), (76, 3375533), (127, 2020004), (133, 1928876), (254, 1010002), (266, 964438), (508, 505001), (532, 482219), (889, 288572), (1778, 144286), (2413, 106316), (3556, 72143), (3797, 67564), (4826, 53158), (7594, 33782), (9652, 26579), (15188, 16891)]