20086663820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{479}}^1\times {\mathrm{4253}}^1$

素因数の和:4787

約数の個数: 96

約数和(自身を含む): 46310745600

約数和(自身を除く): 26224081780

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 58, 68, 85, 116, 145, 170, 290, 340, 479, 493, 580, 958, 986, 1916, 1972, 2395, 2465, 4253, 4790, 4930, 8143, 8506, 9580, 9860, 13891, 16286, 17012, 21265, 27782, 32572, 40715, 42530, 55564, 69455, 72301, 81430, 85060, 123337, 138910, 144602, 162860, 236147, 246674, 277820, 289204, 361505, 472294, 493348, 616685, 723010, 944588, 1180735, 1233370, 1446020, 2037187, 2096729, 2361470, 2466740, 4074374, 4193458, 4722940, 8148748, 8386916, 10185935, 10483645, 20371870, 20967290, 34632179, 40743740, 41934580, 59078423, 69264358, 118156846, 138528716, 173160895, 236313692, 295392115, 346321790, 590784230, 692643580, 1004333191, 1181568460, 2008666382, 4017332764, 5021665955, 10043331910, 20086663820]

約数ペア:

[(1, 20086663820), (2, 10043331910), (4, 5021665955), (5, 4017332764), (10, 2008666382), (17, 1181568460), (20, 1004333191), (29, 692643580), (34, 590784230), (58, 346321790), (68, 295392115), (85, 236313692), (116, 173160895), (145, 138528716), (170, 118156846), (290, 69264358), (340, 59078423), (479, 41934580), (493, 40743740), (580, 34632179), (958, 20967290), (986, 20371870), (1916, 10483645), (1972, 10185935), (2395, 8386916), (2465, 8148748), (4253, 4722940), (4790, 4193458), (4930, 4074374), (8143, 2466740), (8506, 2361470), (9580, 2096729), (9860, 2037187), (13891, 1446020), (16286, 1233370), (17012, 1180735), (21265, 944588), (27782, 723010), (32572, 616685), (40715, 493348), (42530, 472294), (55564, 361505), (69455, 289204), (72301, 277820), (81430, 246674), (85060, 236147), (123337, 162860), (138910, 144602)]