28688688

素因数分解:

$2^4\times 3^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1$

素因数の和:256

約数の個数: 160

約数和(自身を含む): 96422400

約数和(自身を除く): 67733712

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 36, 42, 48, 53, 54, 56, 63, 72, 84, 106, 108, 112, 126, 144, 159, 168, 179, 189, 212, 216, 252, 318, 336, 358, 371, 378, 424, 432, 477, 504, 537, 636, 716, 742, 756, 848, 954, 1008, 1074, 1113, 1253, 1272, 1431, 1432, 1484, 1512, 1611, 1908, 2148, 2226, 2506, 2544, 2862, 2864, 2968, 3024, 3222, 3339, 3759, 3816, 4296, 4452, 4833, 5012, 5724, 5936, 6444, 6678, 7518, 7632, 8592, 8904, 9487, 9666, 10017, 10024, 11277, 11448, 12888, 13356, 15036, 17808, 18974, 19332, 20034, 20048, 22554, 22896, 25776, 26712, 28461, 30072, 33831, 37948, 38664, 40068, 45108, 53424, 56922, 60144, 66409, 67662, 75896, 77328, 80136, 85383, 90216, 113844, 132818, 135324, 151792, 160272, 170766, 180432, 199227, 227688, 256149, 265636, 270648, 341532, 398454, 455376, 512298, 531272, 541296, 597681, 683064, 796908, 1024596, 1062544, 1195362, 1366128, 1593816, 1793043, 2049192, 2390724, 3187632, 3586086, 4098384, 4781448, 7172172, 9562896, 14344344, 28688688]

約数ペア:

[(1, 28688688), (2, 14344344), (3, 9562896), (4, 7172172), (6, 4781448), (7, 4098384), (8, 3586086), (9, 3187632), (12, 2390724), (14, 2049192), (16, 1793043), (18, 1593816), (21, 1366128), (24, 1195362), (27, 1062544), (28, 1024596), (36, 796908), (42, 683064), (48, 597681), (53, 541296), (54, 531272), (56, 512298), (63, 455376), (72, 398454), (84, 341532), (106, 270648), (108, 265636), (112, 256149), (126, 227688), (144, 199227), (159, 180432), (168, 170766), (179, 160272), (189, 151792), (212, 135324), (216, 132818), (252, 113844), (318, 90216), (336, 85383), (358, 80136), (371, 77328), (378, 75896), (424, 67662), (432, 66409), (477, 60144), (504, 56922), (537, 53424), (636, 45108), (716, 40068), (742, 38664), (756, 37948), (848, 33831), (954, 30072), (1008, 28461), (1074, 26712), (1113, 25776), (1253, 22896), (1272, 22554), (1431, 20048), (1432, 20034), (1484, 19332), (1512, 18974), (1611, 17808), (1908, 15036), (2148, 13356), (2226, 12888), (2506, 11448), (2544, 11277), (2862, 10024), (2864, 10017), (2968, 9666), (3024, 9487), (3222, 8904), (3339, 8592), (3759, 7632), (3816, 7518), (4296, 6678), (4452, 6444), (4833, 5936), (5012, 5724)]