28257120

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1$

素因数の和:266

約数の個数: 192

約数和(自身を含む): 102574080

約数和(自身を除く): 74316960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 31, 32, 36, 40, 45, 48, 54, 60, 62, 72, 80, 90, 93, 96, 108, 120, 124, 135, 144, 155, 160, 180, 186, 211, 216, 240, 248, 270, 279, 288, 310, 360, 372, 422, 432, 465, 480, 496, 540, 558, 620, 633, 720, 744, 837, 844, 864, 930, 992, 1055, 1080, 1116, 1240, 1266, 1395, 1440, 1488, 1674, 1688, 1860, 1899, 2110, 2160, 2232, 2480, 2532, 2790, 2976, 3165, 3348, 3376, 3720, 3798, 4185, 4220, 4320, 4464, 4960, 5064, 5580, 5697, 6330, 6541, 6696, 6752, 7440, 7596, 8370, 8440, 8928, 9495, 10128, 11160, 11394, 12660, 13082, 13392, 14880, 15192, 16740, 16880, 18990, 19623, 20256, 22320, 22788, 25320, 26164, 26784, 28485, 30384, 32705, 33480, 33760, 37980, 39246, 44640, 45576, 50640, 52328, 56970, 58869, 60768, 65410, 66960, 75960, 78492, 91152, 98115, 101280, 104656, 113940, 117738, 130820, 133920, 151920, 156984, 176607, 182304, 196230, 209312, 227880, 235476, 261640, 294345, 303840, 313968, 353214, 392460, 455760, 470952, 523280, 588690, 627936, 706428, 784920, 883035, 911520, 941904, 1046560, 1177380, 1412856, 1569840, 1766070, 1883808, 2354760, 2825712, 3139680, 3532140, 4709520, 5651424, 7064280, 9419040, 14128560, 28257120]

約数ペア:

[(1, 28257120), (2, 14128560), (3, 9419040), (4, 7064280), (5, 5651424), (6, 4709520), (8, 3532140), (9, 3139680), (10, 2825712), (12, 2354760), (15, 1883808), (16, 1766070), (18, 1569840), (20, 1412856), (24, 1177380), (27, 1046560), (30, 941904), (31, 911520), (32, 883035), (36, 784920), (40, 706428), (45, 627936), (48, 588690), (54, 523280), (60, 470952), (62, 455760), (72, 392460), (80, 353214), (90, 313968), (93, 303840), (96, 294345), (108, 261640), (120, 235476), (124, 227880), (135, 209312), (144, 196230), (155, 182304), (160, 176607), (180, 156984), (186, 151920), (211, 133920), (216, 130820), (240, 117738), (248, 113940), (270, 104656), (279, 101280), (288, 98115), (310, 91152), (360, 78492), (372, 75960), (422, 66960), (432, 65410), (465, 60768), (480, 58869), (496, 56970), (540, 52328), (558, 50640), (620, 45576), (633, 44640), (720, 39246), (744, 37980), (837, 33760), (844, 33480), (864, 32705), (930, 30384), (992, 28485), (1055, 26784), (1080, 26164), (1116, 25320), (1240, 22788), (1266, 22320), (1395, 20256), (1440, 19623), (1488, 18990), (1674, 16880), (1688, 16740), (1860, 15192), (1899, 14880), (2110, 13392), (2160, 13082), (2232, 12660), (2480, 11394), (2532, 11160), (2790, 10128), (2976, 9495), (3165, 8928), (3348, 8440), (3376, 8370), (3720, 7596), (3798, 7440), (4185, 6752), (4220, 6696), (4320, 6541), (4464, 6330), (4960, 5697), (5064, 5580)]