1221478380

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1979}}^1$

素因数の和:2130

約数の個数: 144

約数和(自身を含む): 3874590720

約数和(自身を除く): 2653112340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 127, 135, 162, 180, 243, 254, 270, 324, 381, 405, 486, 508, 540, 635, 762, 810, 972, 1143, 1215, 1270, 1524, 1620, 1905, 1979, 2286, 2430, 2540, 3429, 3810, 3958, 4572, 4860, 5715, 5937, 6858, 7620, 7916, 9895, 10287, 11430, 11874, 13716, 17145, 17811, 19790, 20574, 22860, 23748, 29685, 30861, 34290, 35622, 39580, 41148, 51435, 53433, 59370, 61722, 68580, 71244, 89055, 102870, 106866, 118740, 123444, 154305, 160299, 178110, 205740, 213732, 251333, 267165, 308610, 320598, 356220, 480897, 502666, 534330, 617220, 641196, 753999, 801495, 961794, 1005332, 1068660, 1256665, 1507998, 1602990, 1923588, 2261997, 2404485, 2513330, 3015996, 3205980, 3769995, 4523994, 4808970, 5026660, 6785991, 7539990, 9047988, 9617940, 11309985, 13571982, 15079980, 20357973, 22619970, 27143964, 33929955, 40715946, 45239940, 61073919, 67859910, 81431892, 101789865, 122147838, 135719820, 203579730, 244295676, 305369595, 407159460, 610739190, 1221478380]

約数ペア:

[(1, 1221478380), (2, 610739190), (3, 407159460), (4, 305369595), (5, 244295676), (6, 203579730), (9, 135719820), (10, 122147838), (12, 101789865), (15, 81431892), (18, 67859910), (20, 61073919), (27, 45239940), (30, 40715946), (36, 33929955), (45, 27143964), (54, 22619970), (60, 20357973), (81, 15079980), (90, 13571982), (108, 11309985), (127, 9617940), (135, 9047988), (162, 7539990), (180, 6785991), (243, 5026660), (254, 4808970), (270, 4523994), (324, 3769995), (381, 3205980), (405, 3015996), (486, 2513330), (508, 2404485), (540, 2261997), (635, 1923588), (762, 1602990), (810, 1507998), (972, 1256665), (1143, 1068660), (1215, 1005332), (1270, 961794), (1524, 801495), (1620, 753999), (1905, 641196), (1979, 617220), (2286, 534330), (2430, 502666), (2540, 480897), (3429, 356220), (3810, 320598), (3958, 308610), (4572, 267165), (4860, 251333), (5715, 213732), (5937, 205740), (6858, 178110), (7620, 160299), (7916, 154305), (9895, 123444), (10287, 118740), (11430, 106866), (11874, 102870), (13716, 89055), (17145, 71244), (17811, 68580), (19790, 61722), (20574, 59370), (22860, 53433), (23748, 51435), (29685, 41148), (30861, 39580), (34290, 35622)]