28120400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{83}}^1$

素因数の和:130

約数の個数: 180

約数和(自身を含む): 85890336

約数和(自身を除く): 57769936

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 25, 28, 35, 40, 44, 50, 55, 56, 70, 77, 80, 83, 88, 100, 110, 112, 121, 140, 154, 166, 175, 176, 200, 220, 242, 275, 280, 308, 332, 350, 385, 400, 415, 440, 484, 550, 560, 581, 605, 616, 664, 700, 770, 830, 847, 880, 913, 968, 1100, 1162, 1210, 1232, 1328, 1400, 1540, 1660, 1694, 1826, 1925, 1936, 2075, 2200, 2324, 2420, 2800, 2905, 3025, 3080, 3320, 3388, 3652, 3850, 4150, 4235, 4400, 4565, 4648, 4840, 5810, 6050, 6160, 6391, 6640, 6776, 7304, 7700, 8300, 8470, 9130, 9296, 9680, 10043, 11620, 12100, 12782, 13552, 14525, 14608, 15400, 16600, 16940, 18260, 20086, 21175, 22825, 23240, 24200, 25564, 29050, 30800, 31955, 33200, 33880, 36520, 40172, 42350, 45650, 46480, 48400, 50215, 51128, 58100, 63910, 67760, 70301, 73040, 80344, 84700, 91300, 100430, 102256, 116200, 127820, 140602, 159775, 160688, 169400, 182600, 200860, 232400, 251075, 255640, 281204, 319550, 338800, 351505, 365200, 401720, 502150, 511280, 562408, 639100, 703010, 803440, 1004300, 1124816, 1278200, 1406020, 1757525, 2008600, 2556400, 2812040, 3515050, 4017200, 5624080, 7030100, 14060200, 28120400]

約数ペア:

[(1, 28120400), (2, 14060200), (4, 7030100), (5, 5624080), (7, 4017200), (8, 3515050), (10, 2812040), (11, 2556400), (14, 2008600), (16, 1757525), (20, 1406020), (22, 1278200), (25, 1124816), (28, 1004300), (35, 803440), (40, 703010), (44, 639100), (50, 562408), (55, 511280), (56, 502150), (70, 401720), (77, 365200), (80, 351505), (83, 338800), (88, 319550), (100, 281204), (110, 255640), (112, 251075), (121, 232400), (140, 200860), (154, 182600), (166, 169400), (175, 160688), (176, 159775), (200, 140602), (220, 127820), (242, 116200), (275, 102256), (280, 100430), (308, 91300), (332, 84700), (350, 80344), (385, 73040), (400, 70301), (415, 67760), (440, 63910), (484, 58100), (550, 51128), (560, 50215), (581, 48400), (605, 46480), (616, 45650), (664, 42350), (700, 40172), (770, 36520), (830, 33880), (847, 33200), (880, 31955), (913, 30800), (968, 29050), (1100, 25564), (1162, 24200), (1210, 23240), (1232, 22825), (1328, 21175), (1400, 20086), (1540, 18260), (1660, 16940), (1694, 16600), (1826, 15400), (1925, 14608), (1936, 14525), (2075, 13552), (2200, 12782), (2324, 12100), (2420, 11620), (2800, 10043), (2905, 9680), (3025, 9296), (3080, 9130), (3320, 8470), (3388, 8300), (3652, 7700), (3850, 7304), (4150, 6776), (4235, 6640), (4400, 6391), (4565, 6160), (4648, 6050), (4840, 5810)]