205495920

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{13591}}^1$

素因数の和:13620

約数の個数: 160

約数和(自身を含む): 808995840

約数和(自身を除く): 603499920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1260, 1512, 1680, 1890, 2160, 2520, 3024, 3780, 5040, 7560, 13591, 15120, 27182, 40773, 54364, 67955, 81546, 95137, 108728, 122319, 135910, 163092, 190274, 203865, 217456, 244638, 271820, 285411, 326184, 366957, 380548, 407730, 475685, 489276, 543640, 570822, 611595, 652368, 733914, 761096, 815460, 856233, 951370, 978552, 1087280, 1141644, 1223190, 1427055, 1467828, 1522192, 1630920, 1712466, 1834785, 1902740, 1957104, 2283288, 2446380, 2568699, 2854110, 2935656, 3261840, 3424932, 3669570, 3805480, 4281165, 4566576, 4892760, 5137398, 5708220, 5871312, 6849864, 7339140, 7610960, 8562330, 9785520, 10274796, 11416440, 12843495, 13699728, 14678280, 17124660, 20549592, 22832880, 25686990, 29356560, 34249320, 41099184, 51373980, 68498640, 102747960, 205495920]

約数ペア:

[(1, 205495920), (2, 102747960), (3, 68498640), (4, 51373980), (5, 41099184), (6, 34249320), (7, 29356560), (8, 25686990), (9, 22832880), (10, 20549592), (12, 17124660), (14, 14678280), (15, 13699728), (16, 12843495), (18, 11416440), (20, 10274796), (21, 9785520), (24, 8562330), (27, 7610960), (28, 7339140), (30, 6849864), (35, 5871312), (36, 5708220), (40, 5137398), (42, 4892760), (45, 4566576), (48, 4281165), (54, 3805480), (56, 3669570), (60, 3424932), (63, 3261840), (70, 2935656), (72, 2854110), (80, 2568699), (84, 2446380), (90, 2283288), (105, 1957104), (108, 1902740), (112, 1834785), (120, 1712466), (126, 1630920), (135, 1522192), (140, 1467828), (144, 1427055), (168, 1223190), (180, 1141644), (189, 1087280), (210, 978552), (216, 951370), (240, 856233), (252, 815460), (270, 761096), (280, 733914), (315, 652368), (336, 611595), (360, 570822), (378, 543640), (420, 489276), (432, 475685), (504, 407730), (540, 380548), (560, 366957), (630, 326184), (720, 285411), (756, 271820), (840, 244638), (945, 217456), (1008, 203865), (1080, 190274), (1260, 163092), (1512, 135910), (1680, 122319), (1890, 108728), (2160, 95137), (2520, 81546), (3024, 67955), (3780, 54364), (5040, 40773), (7560, 27182), (13591, 15120)]