20187156968

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{409}}^1\times {\mathrm{50989}}^1$

素因数の和:51426

約数の個数: 48

約数和(自身を含む): 41707270500

約数和(自身を除く): 21520113532

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 121, 242, 409, 484, 818, 968, 1636, 3272, 4499, 8998, 17996, 35992, 49489, 50989, 98978, 101978, 197956, 203956, 395912, 407912, 560879, 1121758, 2243516, 4487032, 6169669, 12339338, 20854501, 24678676, 41709002, 49357352, 83418004, 166836008, 229399511, 458799022, 917598044, 1835196088, 2523394621, 5046789242, 10093578484, 20187156968]

約数ペア:

[(1, 20187156968), (2, 10093578484), (4, 5046789242), (8, 2523394621), (11, 1835196088), (22, 917598044), (44, 458799022), (88, 229399511), (121, 166836008), (242, 83418004), (409, 49357352), (484, 41709002), (818, 24678676), (968, 20854501), (1636, 12339338), (3272, 6169669), (4499, 4487032), (8998, 2243516), (17996, 1121758), (35992, 560879), (49489, 407912), (50989, 395912), (98978, 203956), (101978, 197956)]