80998740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{263}}^1$

素因数の和:366

約数の個数: 144

約数和(自身を含む): 259459200

約数和(自身を除く): 178460460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 59, 60, 87, 90, 116, 118, 145, 174, 177, 180, 236, 261, 263, 290, 295, 348, 354, 435, 522, 526, 531, 580, 590, 708, 789, 870, 885, 1044, 1052, 1062, 1180, 1305, 1315, 1578, 1711, 1740, 1770, 2124, 2367, 2610, 2630, 2655, 3156, 3422, 3540, 3945, 4734, 5133, 5220, 5260, 5310, 6844, 7627, 7890, 8555, 9468, 10266, 10620, 11835, 15254, 15399, 15517, 15780, 17110, 20532, 22881, 23670, 25665, 30508, 30798, 31034, 34220, 38135, 45762, 46551, 47340, 51330, 61596, 62068, 68643, 76270, 76995, 77585, 91524, 93102, 102660, 114405, 137286, 139653, 152540, 153990, 155170, 186204, 228810, 232755, 274572, 279306, 307980, 310340, 343215, 449993, 457620, 465510, 558612, 686430, 698265, 899986, 931020, 1349979, 1372860, 1396530, 1799972, 2249965, 2699958, 2793060, 4049937, 4499930, 5399916, 6749895, 8099874, 8999860, 13499790, 16199748, 20249685, 26999580, 40499370, 80998740]

約数ペア:

[(1, 80998740), (2, 40499370), (3, 26999580), (4, 20249685), (5, 16199748), (6, 13499790), (9, 8999860), (10, 8099874), (12, 6749895), (15, 5399916), (18, 4499930), (20, 4049937), (29, 2793060), (30, 2699958), (36, 2249965), (45, 1799972), (58, 1396530), (59, 1372860), (60, 1349979), (87, 931020), (90, 899986), (116, 698265), (118, 686430), (145, 558612), (174, 465510), (177, 457620), (180, 449993), (236, 343215), (261, 310340), (263, 307980), (290, 279306), (295, 274572), (348, 232755), (354, 228810), (435, 186204), (522, 155170), (526, 153990), (531, 152540), (580, 139653), (590, 137286), (708, 114405), (789, 102660), (870, 93102), (885, 91524), (1044, 77585), (1052, 76995), (1062, 76270), (1180, 68643), (1305, 62068), (1315, 61596), (1578, 51330), (1711, 47340), (1740, 46551), (1770, 45762), (2124, 38135), (2367, 34220), (2610, 31034), (2630, 30798), (2655, 30508), (3156, 25665), (3422, 23670), (3540, 22881), (3945, 20532), (4734, 17110), (5133, 15780), (5220, 15517), (5260, 15399), (5310, 15254), (6844, 11835), (7627, 10620), (7890, 10266), (8555, 9468)]