399985320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{4909}}^1$

素因数の和:5027

約数の個数: 128

約数和(自身を含む): 1385798400

約数和(自身を除く): 985813080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 97, 105, 120, 140, 168, 194, 210, 280, 291, 388, 420, 485, 582, 679, 776, 840, 970, 1164, 1358, 1455, 1940, 2037, 2328, 2716, 2910, 3395, 3880, 4074, 4909, 5432, 5820, 6790, 8148, 9818, 10185, 11640, 13580, 14727, 16296, 19636, 20370, 24545, 27160, 29454, 34363, 39272, 40740, 49090, 58908, 68726, 73635, 81480, 98180, 103089, 117816, 137452, 147270, 171815, 196360, 206178, 274904, 294540, 343630, 412356, 476173, 515445, 589080, 687260, 824712, 952346, 1030890, 1374520, 1428519, 1904692, 2061780, 2380865, 2857038, 3333211, 3809384, 4123560, 4761730, 5714076, 6666422, 7142595, 9523460, 9999633, 11428152, 13332844, 14285190, 16666055, 19046920, 19999266, 26665688, 28570380, 33332110, 39998532, 49998165, 57140760, 66664220, 79997064, 99996330, 133328440, 199992660, 399985320]

約数ペア:

[(1, 399985320), (2, 199992660), (3, 133328440), (4, 99996330), (5, 79997064), (6, 66664220), (7, 57140760), (8, 49998165), (10, 39998532), (12, 33332110), (14, 28570380), (15, 26665688), (20, 19999266), (21, 19046920), (24, 16666055), (28, 14285190), (30, 13332844), (35, 11428152), (40, 9999633), (42, 9523460), (56, 7142595), (60, 6666422), (70, 5714076), (84, 4761730), (97, 4123560), (105, 3809384), (120, 3333211), (140, 2857038), (168, 2380865), (194, 2061780), (210, 1904692), (280, 1428519), (291, 1374520), (388, 1030890), (420, 952346), (485, 824712), (582, 687260), (679, 589080), (776, 515445), (840, 476173), (970, 412356), (1164, 343630), (1358, 294540), (1455, 274904), (1940, 206178), (2037, 196360), (2328, 171815), (2716, 147270), (2910, 137452), (3395, 117816), (3880, 103089), (4074, 98180), (4909, 81480), (5432, 73635), (5820, 68726), (6790, 58908), (8148, 49090), (9818, 40740), (10185, 39272), (11640, 34363), (13580, 29454), (14727, 27160), (16296, 24545), (19636, 20370)]