261262482

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1\times {\mathrm{647}}^1$

素因数の和:863

約数の個数: 64

約数和(自身を含む): 585252864

約数和(自身を除く): 323990382

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 167, 186, 334, 403, 501, 647, 806, 1002, 1209, 1294, 1941, 2171, 2418, 3882, 4342, 5177, 6513, 8411, 10354, 13026, 15531, 16822, 20057, 25233, 31062, 40114, 50466, 60171, 67301, 108049, 120342, 134602, 201903, 216098, 260741, 324147, 403806, 521482, 648294, 782223, 1404637, 1564446, 2809274, 3349519, 4213911, 6699038, 8427822, 10048557, 20097114, 43543747, 87087494, 130631241, 261262482]

約数ペア:

[(1, 261262482), (2, 130631241), (3, 87087494), (6, 43543747), (13, 20097114), (26, 10048557), (31, 8427822), (39, 6699038), (62, 4213911), (78, 3349519), (93, 2809274), (167, 1564446), (186, 1404637), (334, 782223), (403, 648294), (501, 521482), (647, 403806), (806, 324147), (1002, 260741), (1209, 216098), (1294, 201903), (1941, 134602), (2171, 120342), (2418, 108049), (3882, 67301), (4342, 60171), (5177, 50466), (6513, 40114), (8411, 31062), (10354, 25233), (13026, 20057), (15531, 16822)]