204519861

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:243

約数の個数: 96

約数和(自身を含む): 384384000

約数和(自身を除く): 179864139

約数列:

[1, 3, 7, 9, 13, 21, 29, 39, 63, 79, 87, 91, 109, 117, 203, 237, 261, 273, 327, 377, 553, 609, 711, 763, 819, 981, 1027, 1131, 1417, 1659, 1827, 2289, 2291, 2639, 3081, 3161, 3393, 4251, 4977, 6867, 6873, 7189, 7917, 8611, 9243, 9483, 9919, 12753, 16037, 20619, 21567, 22127, 23751, 25833, 28449, 29757, 29783, 41093, 48111, 60277, 64701, 66381, 77499, 89271, 89349, 111943, 123279, 144333, 180831, 199143, 208481, 249719, 268047, 287651, 335829, 369837, 542493, 625443, 749157, 783601, 862953, 1007487, 1748033, 1876329, 2247471, 2350803, 2588859, 3246347, 5244099, 7052409, 9739041, 15732297, 22724429, 29217123, 68173287, 204519861]

約数ペア:

[(1, 204519861), (3, 68173287), (7, 29217123), (9, 22724429), (13, 15732297), (21, 9739041), (29, 7052409), (39, 5244099), (63, 3246347), (79, 2588859), (87, 2350803), (91, 2247471), (109, 1876329), (117, 1748033), (203, 1007487), (237, 862953), (261, 783601), (273, 749157), (327, 625443), (377, 542493), (553, 369837), (609, 335829), (711, 287651), (763, 268047), (819, 249719), (981, 208481), (1027, 199143), (1131, 180831), (1417, 144333), (1659, 123279), (1827, 111943), (2289, 89349), (2291, 89271), (2639, 77499), (3081, 66381), (3161, 64701), (3393, 60277), (4251, 48111), (4977, 41093), (6867, 29783), (6873, 29757), (7189, 28449), (7917, 25833), (8611, 23751), (9243, 22127), (9483, 21567), (9919, 20619), (12753, 16037)]