19815840

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1$

素因数の和:177

約数の個数: 240

約数和(自身を含む): 76839840

約数和(自身を除く): 57024000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 27, 30, 32, 33, 36, 40, 44, 45, 48, 54, 55, 60, 66, 72, 80, 81, 88, 90, 96, 99, 108, 110, 120, 132, 135, 139, 144, 160, 162, 165, 176, 180, 198, 216, 220, 240, 264, 270, 278, 288, 297, 324, 330, 352, 360, 396, 405, 417, 432, 440, 480, 495, 528, 540, 556, 594, 648, 660, 695, 720, 792, 810, 834, 864, 880, 891, 990, 1056, 1080, 1112, 1188, 1251, 1296, 1320, 1390, 1440, 1485, 1529, 1584, 1620, 1668, 1760, 1782, 1980, 2085, 2160, 2224, 2376, 2502, 2592, 2640, 2780, 2970, 3058, 3168, 3240, 3336, 3564, 3753, 3960, 4170, 4320, 4448, 4455, 4587, 4752, 5004, 5280, 5560, 5940, 6116, 6255, 6480, 6672, 7128, 7506, 7645, 7920, 8340, 8910, 9174, 9504, 10008, 11120, 11259, 11880, 12232, 12510, 12960, 13344, 13761, 14256, 15012, 15290, 15840, 16680, 17820, 18348, 18765, 20016, 22240, 22518, 22935, 23760, 24464, 25020, 27522, 28512, 30024, 30580, 33360, 35640, 36696, 37530, 40032, 41283, 45036, 45870, 47520, 48928, 50040, 55044, 56295, 60048, 61160, 66720, 68805, 71280, 73392, 75060, 82566, 90072, 91740, 100080, 110088, 112590, 120096, 122320, 123849, 137610, 142560, 146784, 150120, 165132, 180144, 183480, 200160, 206415, 220176, 225180, 244640, 247698, 275220, 300240, 330264, 360288, 366960, 412830, 440352, 450360, 495396, 550440, 600480, 619245, 660528, 733920, 825660, 900720, 990792, 1100880, 1238490, 1321056, 1651320, 1801440, 1981584, 2201760, 2476980, 3302640, 3963168, 4953960, 6605280, 9907920, 19815840]

約数ペア:

[(1, 19815840), (2, 9907920), (3, 6605280), (4, 4953960), (5, 3963168), (6, 3302640), (8, 2476980), (9, 2201760), (10, 1981584), (11, 1801440), (12, 1651320), (15, 1321056), (16, 1238490), (18, 1100880), (20, 990792), (22, 900720), (24, 825660), (27, 733920), (30, 660528), (32, 619245), (33, 600480), (36, 550440), (40, 495396), (44, 450360), (45, 440352), (48, 412830), (54, 366960), (55, 360288), (60, 330264), (66, 300240), (72, 275220), (80, 247698), (81, 244640), (88, 225180), (90, 220176), (96, 206415), (99, 200160), (108, 183480), (110, 180144), (120, 165132), (132, 150120), (135, 146784), (139, 142560), (144, 137610), (160, 123849), (162, 122320), (165, 120096), (176, 112590), (180, 110088), (198, 100080), (216, 91740), (220, 90072), (240, 82566), (264, 75060), (270, 73392), (278, 71280), (288, 68805), (297, 66720), (324, 61160), (330, 60048), (352, 56295), (360, 55044), (396, 50040), (405, 48928), (417, 47520), (432, 45870), (440, 45036), (480, 41283), (495, 40032), (528, 37530), (540, 36696), (556, 35640), (594, 33360), (648, 30580), (660, 30024), (695, 28512), (720, 27522), (792, 25020), (810, 24464), (834, 23760), (864, 22935), (880, 22518), (891, 22240), (990, 20016), (1056, 18765), (1080, 18348), (1112, 17820), (1188, 16680), (1251, 15840), (1296, 15290), (1320, 15012), (1390, 14256), (1440, 13761), (1485, 13344), (1529, 12960), (1584, 12510), (1620, 12232), (1668, 11880), (1760, 11259), (1782, 11120), (1980, 10008), (2085, 9504), (2160, 9174), (2224, 8910), (2376, 8340), (2502, 7920), (2592, 7645), (2640, 7506), (2780, 7128), (2970, 6672), (3058, 6480), (3168, 6255), (3240, 6116), (3336, 5940), (3564, 5560), (3753, 5280), (3960, 5004), (4170, 4752), (4320, 4587), (4448, 4455)]