262998981

素因数分解:

$3^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:276

約数の個数: 80

約数和(自身を含む): 468357120

約数和(自身を除く): 205358139

約数列:

[1, 3, 7, 9, 21, 27, 47, 63, 71, 81, 139, 141, 189, 213, 329, 417, 423, 497, 567, 639, 973, 987, 1251, 1269, 1491, 1917, 2919, 2961, 3337, 3753, 3807, 4473, 5751, 6533, 8757, 8883, 9869, 10011, 11259, 13419, 19599, 23359, 26271, 26649, 29607, 30033, 40257, 45731, 58797, 69083, 70077, 78813, 88821, 90099, 137193, 176391, 207249, 210231, 266463, 270297, 411579, 463843, 529173, 621747, 630693, 799389, 1234737, 1391529, 1865241, 1892079, 3246901, 3704211, 4174587, 5595723, 9740703, 12523761, 29222109, 37571283, 87666327, 262998981]

約数ペア:

[(1, 262998981), (3, 87666327), (7, 37571283), (9, 29222109), (21, 12523761), (27, 9740703), (47, 5595723), (63, 4174587), (71, 3704211), (81, 3246901), (139, 1892079), (141, 1865241), (189, 1391529), (213, 1234737), (329, 799389), (417, 630693), (423, 621747), (497, 529173), (567, 463843), (639, 411579), (973, 270297), (987, 266463), (1251, 210231), (1269, 207249), (1491, 176391), (1917, 137193), (2919, 90099), (2961, 88821), (3337, 78813), (3753, 70077), (3807, 69083), (4473, 58797), (5751, 45731), (6533, 40257), (8757, 30033), (8883, 29607), (9869, 26649), (10011, 26271), (11259, 23359), (13419, 19599)]