28838880

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{2861}}^1$

素因数の和:2889

約数の個数: 144

約数和(自身を含む): 112510944

約数和(自身を除く): 83672064

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 2016, 2520, 2861, 3360, 5040, 5722, 8583, 10080, 11444, 14305, 17166, 20027, 22888, 25749, 28610, 34332, 40054, 42915, 45776, 51498, 57220, 60081, 68664, 80108, 85830, 91552, 100135, 102996, 114440, 120162, 128745, 137328, 160216, 171660, 180243, 200270, 205992, 228880, 240324, 257490, 274656, 300405, 320432, 343320, 360486, 400540, 411984, 457760, 480648, 514980, 600810, 640864, 686640, 720972, 801080, 823968, 901215, 961296, 1029960, 1201620, 1373280, 1441944, 1602160, 1802430, 1922592, 2059920, 2403240, 2883888, 3204320, 3604860, 4119840, 4806480, 5767776, 7209720, 9612960, 14419440, 28838880]

約数ペア:

[(1, 28838880), (2, 14419440), (3, 9612960), (4, 7209720), (5, 5767776), (6, 4806480), (7, 4119840), (8, 3604860), (9, 3204320), (10, 2883888), (12, 2403240), (14, 2059920), (15, 1922592), (16, 1802430), (18, 1602160), (20, 1441944), (21, 1373280), (24, 1201620), (28, 1029960), (30, 961296), (32, 901215), (35, 823968), (36, 801080), (40, 720972), (42, 686640), (45, 640864), (48, 600810), (56, 514980), (60, 480648), (63, 457760), (70, 411984), (72, 400540), (80, 360486), (84, 343320), (90, 320432), (96, 300405), (105, 274656), (112, 257490), (120, 240324), (126, 228880), (140, 205992), (144, 200270), (160, 180243), (168, 171660), (180, 160216), (210, 137328), (224, 128745), (240, 120162), (252, 114440), (280, 102996), (288, 100135), (315, 91552), (336, 85830), (360, 80108), (420, 68664), (480, 60081), (504, 57220), (560, 51498), (630, 45776), (672, 42915), (720, 40054), (840, 34332), (1008, 28610), (1120, 25749), (1260, 22888), (1440, 20027), (1680, 17166), (2016, 14305), (2520, 11444), (2861, 10080), (3360, 8583), (5040, 5722)]