20805941420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{936361}}^1$

素因数の和:936482

約数の個数: 48

約数和(自身を含む): 48136497696

約数和(自身を除く): 27330556276

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 101, 110, 202, 220, 404, 505, 1010, 1111, 2020, 2222, 4444, 5555, 11110, 22220, 936361, 1872722, 3745444, 4681805, 9363610, 10299971, 18727220, 20599942, 41199884, 51499855, 94572461, 102999710, 189144922, 205999420, 378289844, 472862305, 945724610, 1040297071, 1891449220, 2080594142, 4161188284, 5201485355, 10402970710, 20805941420]

約数ペア:

[(1, 20805941420), (2, 10402970710), (4, 5201485355), (5, 4161188284), (10, 2080594142), (11, 1891449220), (20, 1040297071), (22, 945724610), (44, 472862305), (55, 378289844), (101, 205999420), (110, 189144922), (202, 102999710), (220, 94572461), (404, 51499855), (505, 41199884), (1010, 20599942), (1111, 18727220), (2020, 10299971), (2222, 9363610), (4444, 4681805), (5555, 3745444), (11110, 1872722), (22220, 936361)]