55405280

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{191}}^1$

素因数の和:257

約数の個数: 144

約数和(自身を含む): 157199616

約数和(自身を除く): 101794336

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 37, 40, 49, 56, 70, 74, 80, 98, 112, 140, 148, 160, 185, 191, 196, 224, 245, 259, 280, 296, 370, 382, 392, 490, 518, 560, 592, 740, 764, 784, 955, 980, 1036, 1120, 1184, 1295, 1337, 1480, 1528, 1568, 1813, 1910, 1960, 2072, 2590, 2674, 2960, 3056, 3626, 3820, 3920, 4144, 5180, 5348, 5920, 6112, 6685, 7067, 7252, 7640, 7840, 8288, 9065, 9359, 10360, 10696, 13370, 14134, 14504, 15280, 18130, 18718, 20720, 21392, 26740, 28268, 29008, 30560, 35335, 36260, 37436, 41440, 42784, 46795, 49469, 53480, 56536, 58016, 70670, 72520, 74872, 93590, 98938, 106960, 113072, 141340, 145040, 149744, 187180, 197876, 213920, 226144, 247345, 282680, 290080, 299488, 346283, 374360, 395752, 494690, 565360, 692566, 748720, 791504, 989380, 1130720, 1385132, 1497440, 1583008, 1731415, 1978760, 2770264, 3462830, 3957520, 5540528, 6925660, 7915040, 11081056, 13851320, 27702640, 55405280]

約数ペア:

[(1, 55405280), (2, 27702640), (4, 13851320), (5, 11081056), (7, 7915040), (8, 6925660), (10, 5540528), (14, 3957520), (16, 3462830), (20, 2770264), (28, 1978760), (32, 1731415), (35, 1583008), (37, 1497440), (40, 1385132), (49, 1130720), (56, 989380), (70, 791504), (74, 748720), (80, 692566), (98, 565360), (112, 494690), (140, 395752), (148, 374360), (160, 346283), (185, 299488), (191, 290080), (196, 282680), (224, 247345), (245, 226144), (259, 213920), (280, 197876), (296, 187180), (370, 149744), (382, 145040), (392, 141340), (490, 113072), (518, 106960), (560, 98938), (592, 93590), (740, 74872), (764, 72520), (784, 70670), (955, 58016), (980, 56536), (1036, 53480), (1120, 49469), (1184, 46795), (1295, 42784), (1337, 41440), (1480, 37436), (1528, 36260), (1568, 35335), (1813, 30560), (1910, 29008), (1960, 28268), (2072, 26740), (2590, 21392), (2674, 20720), (2960, 18718), (3056, 18130), (3626, 15280), (3820, 14504), (3920, 14134), (4144, 13370), (5180, 10696), (5348, 10360), (5920, 9359), (6112, 9065), (6685, 8288), (7067, 7840), (7252, 7640)]