256996324

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{1217}}^1$

素因数の和:1396

約数の個数: 48

約数和(自身を含む): 504193536

約数和(自身を除く): 247197212

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 131, 262, 403, 524, 806, 1217, 1612, 1703, 2434, 3406, 4061, 4868, 6812, 8122, 15821, 16244, 31642, 37727, 52793, 63284, 75454, 105586, 150908, 159427, 211172, 318854, 490451, 637708, 980902, 1961804, 2072551, 4145102, 4942237, 8290204, 9884474, 19768948, 64249081, 128498162, 256996324]

約数ペア:

[(1, 256996324), (2, 128498162), (4, 64249081), (13, 19768948), (26, 9884474), (31, 8290204), (52, 4942237), (62, 4145102), (124, 2072551), (131, 1961804), (262, 980902), (403, 637708), (524, 490451), (806, 318854), (1217, 211172), (1612, 159427), (1703, 150908), (2434, 105586), (3406, 75454), (4061, 63284), (4868, 52793), (6812, 37727), (8122, 31642), (15821, 16244)]