251134286

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{31}}^2$

素因数の和:142

約数の個数: 72

約数和(自身を含む): 461268360

約数和(自身を除く): 210134074

約数列:

[1, 2, 13, 19, 23, 26, 31, 38, 46, 62, 247, 299, 403, 437, 494, 529, 589, 598, 713, 806, 874, 961, 1058, 1178, 1426, 1922, 5681, 6877, 7657, 9269, 10051, 11362, 12493, 13547, 13754, 15314, 16399, 18259, 18538, 20102, 22103, 24986, 27094, 32798, 36518, 44206, 130663, 176111, 213187, 237367, 261326, 287339, 311581, 352222, 419957, 426374, 474734, 508369, 574678, 623162, 839914, 1016738, 4050553, 5459441, 6608797, 8101106, 9659011, 10918882, 13217594, 19318022, 125567143, 251134286]

約数ペア:

[(1, 251134286), (2, 125567143), (13, 19318022), (19, 13217594), (23, 10918882), (26, 9659011), (31, 8101106), (38, 6608797), (46, 5459441), (62, 4050553), (247, 1016738), (299, 839914), (403, 623162), (437, 574678), (494, 508369), (529, 474734), (589, 426374), (598, 419957), (713, 352222), (806, 311581), (874, 287339), (961, 261326), (1058, 237367), (1178, 213187), (1426, 176111), (1922, 130663), (5681, 44206), (6877, 36518), (7657, 32798), (9269, 27094), (10051, 24986), (11362, 22103), (12493, 20102), (13547, 18538), (13754, 18259), (15314, 16399)]