20804517118

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{599}}^1$

素因数の和:767

約数の個数: 144

約数和(自身を含む): 41756148000

約数和(自身を除く): 20951630882

約数列:

[1, 2, 7, 11, 14, 22, 29, 49, 58, 77, 98, 101, 121, 154, 202, 203, 242, 319, 406, 539, 599, 638, 707, 847, 1078, 1111, 1198, 1414, 1421, 1694, 2222, 2233, 2842, 2929, 3509, 4193, 4466, 4949, 5858, 5929, 6589, 7018, 7777, 8386, 9898, 11858, 12221, 13178, 15554, 15631, 17371, 20503, 24442, 24563, 29351, 31262, 32219, 34742, 41006, 46123, 49126, 54439, 58702, 60499, 64438, 72479, 85547, 92246, 108878, 120998, 121597, 143521, 144958, 171094, 171941, 191081, 225533, 243194, 287042, 322861, 343882, 354409, 382162, 423493, 451066, 507353, 598829, 645722, 665489, 708818, 846986, 851179, 1014706, 1197658, 1330978, 1337567, 1578731, 1702358, 1754471, 2101891, 2480863, 2675134, 2964451, 3157462, 3508942, 3551471, 4203782, 4658423, 4961726, 5928902, 7102942, 7320379, 9316846, 9362969, 12281297, 14640758, 14713237, 17366041, 18725938, 19299181, 24562594, 29426474, 32608961, 34732082, 38598362, 51242653, 65217922, 85969079, 102485306, 102992659, 135094267, 171938158, 205985318, 212290991, 270188534, 358698571, 424581982, 717397142, 945659869, 1486036937, 1891319738, 2972073874, 10402258559, 20804517118]

約数ペア:

[(1, 20804517118), (2, 10402258559), (7, 2972073874), (11, 1891319738), (14, 1486036937), (22, 945659869), (29, 717397142), (49, 424581982), (58, 358698571), (77, 270188534), (98, 212290991), (101, 205985318), (121, 171938158), (154, 135094267), (202, 102992659), (203, 102485306), (242, 85969079), (319, 65217922), (406, 51242653), (539, 38598362), (599, 34732082), (638, 32608961), (707, 29426474), (847, 24562594), (1078, 19299181), (1111, 18725938), (1198, 17366041), (1414, 14713237), (1421, 14640758), (1694, 12281297), (2222, 9362969), (2233, 9316846), (2842, 7320379), (2929, 7102942), (3509, 5928902), (4193, 4961726), (4466, 4658423), (4949, 4203782), (5858, 3551471), (5929, 3508942), (6589, 3157462), (7018, 2964451), (7777, 2675134), (8386, 2480863), (9898, 2101891), (11858, 1754471), (12221, 1702358), (13178, 1578731), (15554, 1337567), (15631, 1330978), (17371, 1197658), (20503, 1014706), (24442, 851179), (24563, 846986), (29351, 708818), (31262, 665489), (32219, 645722), (34742, 598829), (41006, 507353), (46123, 451066), (49126, 423493), (54439, 382162), (58702, 354409), (60499, 343882), (64438, 322861), (72479, 287042), (85547, 243194), (92246, 225533), (108878, 191081), (120998, 171941), (121597, 171094), (143521, 144958)]