20191680

素因数分解:

$2^6\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1$

素因数の和:89

約数の個数: 280

約数和(自身を含む): 77449680

約数和(自身を除く): 57258000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 27, 30, 32, 36, 38, 40, 41, 45, 48, 54, 57, 60, 64, 72, 76, 80, 81, 82, 90, 95, 96, 108, 114, 120, 123, 135, 144, 152, 160, 162, 164, 171, 180, 190, 192, 205, 216, 228, 240, 246, 270, 285, 288, 304, 320, 324, 328, 342, 360, 369, 380, 405, 410, 432, 456, 480, 492, 513, 540, 570, 576, 608, 615, 648, 656, 684, 720, 738, 760, 779, 810, 820, 855, 864, 912, 960, 984, 1026, 1080, 1107, 1140, 1216, 1230, 1296, 1312, 1368, 1440, 1476, 1520, 1539, 1558, 1620, 1640, 1710, 1728, 1824, 1845, 1968, 2052, 2160, 2214, 2280, 2337, 2460, 2565, 2592, 2624, 2736, 2880, 2952, 3040, 3078, 3116, 3240, 3280, 3321, 3420, 3648, 3690, 3895, 3936, 4104, 4320, 4428, 4560, 4674, 4920, 5130, 5184, 5472, 5535, 5904, 6080, 6156, 6232, 6480, 6560, 6642, 6840, 7011, 7380, 7695, 7790, 7872, 8208, 8640, 8856, 9120, 9348, 9840, 10260, 10944, 11070, 11685, 11808, 12312, 12464, 12960, 13120, 13284, 13680, 14022, 14760, 15390, 15580, 16416, 16605, 17712, 18240, 18696, 19680, 20520, 21033, 22140, 23370, 23616, 24624, 24928, 25920, 26568, 27360, 28044, 29520, 30780, 31160, 32832, 33210, 35055, 35424, 37392, 39360, 41040, 42066, 44280, 46740, 49248, 49856, 53136, 54720, 56088, 59040, 61560, 62320, 63099, 66420, 70110, 70848, 74784, 82080, 84132, 88560, 93480, 98496, 105165, 106272, 112176, 118080, 123120, 124640, 126198, 132840, 140220, 149568, 164160, 168264, 177120, 186960, 210330, 212544, 224352, 246240, 249280, 252396, 265680, 280440, 315495, 336528, 354240, 373920, 420660, 448704, 492480, 504792, 531360, 560880, 630990, 673056, 747840, 841320, 1009584, 1062720, 1121760, 1261980, 1346112, 1682640, 2019168, 2243520, 2523960, 3365280, 4038336, 5047920, 6730560, 10095840, 20191680]

約数ペア:

[(1, 20191680), (2, 10095840), (3, 6730560), (4, 5047920), (5, 4038336), (6, 3365280), (8, 2523960), (9, 2243520), (10, 2019168), (12, 1682640), (15, 1346112), (16, 1261980), (18, 1121760), (19, 1062720), (20, 1009584), (24, 841320), (27, 747840), (30, 673056), (32, 630990), (36, 560880), (38, 531360), (40, 504792), (41, 492480), (45, 448704), (48, 420660), (54, 373920), (57, 354240), (60, 336528), (64, 315495), (72, 280440), (76, 265680), (80, 252396), (81, 249280), (82, 246240), (90, 224352), (95, 212544), (96, 210330), (108, 186960), (114, 177120), (120, 168264), (123, 164160), (135, 149568), (144, 140220), (152, 132840), (160, 126198), (162, 124640), (164, 123120), (171, 118080), (180, 112176), (190, 106272), (192, 105165), (205, 98496), (216, 93480), (228, 88560), (240, 84132), (246, 82080), (270, 74784), (285, 70848), (288, 70110), (304, 66420), (320, 63099), (324, 62320), (328, 61560), (342, 59040), (360, 56088), (369, 54720), (380, 53136), (405, 49856), (410, 49248), (432, 46740), (456, 44280), (480, 42066), (492, 41040), (513, 39360), (540, 37392), (570, 35424), (576, 35055), (608, 33210), (615, 32832), (648, 31160), (656, 30780), (684, 29520), (720, 28044), (738, 27360), (760, 26568), (779, 25920), (810, 24928), (820, 24624), (855, 23616), (864, 23370), (912, 22140), (960, 21033), (984, 20520), (1026, 19680), (1080, 18696), (1107, 18240), (1140, 17712), (1216, 16605), (1230, 16416), (1296, 15580), (1312, 15390), (1368, 14760), (1440, 14022), (1476, 13680), (1520, 13284), (1539, 13120), (1558, 12960), (1620, 12464), (1640, 12312), (1710, 11808), (1728, 11685), (1824, 11070), (1845, 10944), (1968, 10260), (2052, 9840), (2160, 9348), (2214, 9120), (2280, 8856), (2337, 8640), (2460, 8208), (2565, 7872), (2592, 7790), (2624, 7695), (2736, 7380), (2880, 7011), (2952, 6840), (3040, 6642), (3078, 6560), (3116, 6480), (3240, 6232), (3280, 6156), (3321, 6080), (3420, 5904), (3648, 5535), (3690, 5472), (3895, 5184), (3936, 5130), (4104, 4920), (4320, 4674), (4428, 4560)]