281492276

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:253

約数の個数: 72

約数和(自身を含む): 565199712

約数和(自身を除く): 283707436

約数列:

[1, 2, 4, 13, 26, 31, 43, 52, 62, 86, 124, 131, 172, 262, 403, 524, 559, 806, 961, 1118, 1333, 1612, 1703, 1922, 2236, 2666, 3406, 3844, 4061, 5332, 5633, 6812, 8122, 11266, 12493, 16244, 17329, 22532, 24986, 34658, 41323, 49972, 52793, 69316, 73229, 82646, 105586, 125891, 146458, 165292, 174623, 211172, 251782, 292916, 349246, 503564, 537199, 698492, 1074398, 1636583, 2148796, 2270099, 3273166, 4540198, 5413313, 6546332, 9080396, 10826626, 21653252, 70373069, 140746138, 281492276]

約数ペア:

[(1, 281492276), (2, 140746138), (4, 70373069), (13, 21653252), (26, 10826626), (31, 9080396), (43, 6546332), (52, 5413313), (62, 4540198), (86, 3273166), (124, 2270099), (131, 2148796), (172, 1636583), (262, 1074398), (403, 698492), (524, 537199), (559, 503564), (806, 349246), (961, 292916), (1118, 251782), (1333, 211172), (1612, 174623), (1703, 165292), (1922, 146458), (2236, 125891), (2666, 105586), (3406, 82646), (3844, 73229), (4061, 69316), (5332, 52793), (5633, 49972), (6812, 41323), (8122, 34658), (11266, 24986), (12493, 22532), (16244, 17329)]