287751555

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{397}}^1$

素因数の和:490

約数の個数: 128

約数和(自身を含む): 641894400

約数和(自身を除く): 354142845

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 27, 35, 39, 45, 59, 63, 65, 91, 105, 117, 135, 177, 189, 195, 273, 295, 315, 351, 397, 413, 455, 531, 585, 767, 819, 885, 945, 1191, 1239, 1365, 1593, 1755, 1985, 2065, 2301, 2457, 2655, 2779, 3573, 3717, 3835, 4095, 5161, 5369, 5955, 6195, 6903, 7965, 8337, 10719, 11151, 11505, 12285, 13895, 15483, 16107, 17865, 18585, 20709, 23423, 25011, 25805, 26845, 34515, 36127, 41685, 46449, 48321, 53595, 55755, 70269, 75033, 77415, 80535, 103545, 108381, 117115, 125055, 139347, 144963, 163961, 180635, 210807, 232245, 241605, 304499, 325143, 351345, 375165, 491883, 541905, 632421, 696735, 724815, 819805, 913497, 975429, 1054035, 1475649, 1522495, 1625715, 2131493, 2459415, 2740491, 3162105, 4426947, 4567485, 4877145, 6394479, 7378245, 8221473, 10657465, 13702455, 19183437, 22134735, 31972395, 41107365, 57550311, 95917185, 287751555]

約数ペア:

[(1, 287751555), (3, 95917185), (5, 57550311), (7, 41107365), (9, 31972395), (13, 22134735), (15, 19183437), (21, 13702455), (27, 10657465), (35, 8221473), (39, 7378245), (45, 6394479), (59, 4877145), (63, 4567485), (65, 4426947), (91, 3162105), (105, 2740491), (117, 2459415), (135, 2131493), (177, 1625715), (189, 1522495), (195, 1475649), (273, 1054035), (295, 975429), (315, 913497), (351, 819805), (397, 724815), (413, 696735), (455, 632421), (531, 541905), (585, 491883), (767, 375165), (819, 351345), (885, 325143), (945, 304499), (1191, 241605), (1239, 232245), (1365, 210807), (1593, 180635), (1755, 163961), (1985, 144963), (2065, 139347), (2301, 125055), (2457, 117115), (2655, 108381), (2779, 103545), (3573, 80535), (3717, 77415), (3835, 75033), (4095, 70269), (5161, 55755), (5369, 53595), (5955, 48321), (6195, 46449), (6903, 41685), (7965, 36127), (8337, 34515), (10719, 26845), (11151, 25805), (11505, 25011), (12285, 23423), (13895, 20709), (15483, 18585), (16107, 17865)]