22419980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{1009}}^1$

素因数の和:1130

約数の個数: 48

約数和(自身を含む): 51922080

約数和(自身を除く): 29502100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 101, 110, 202, 220, 404, 505, 1009, 1010, 1111, 2018, 2020, 2222, 4036, 4444, 5045, 5555, 10090, 11099, 11110, 20180, 22198, 22220, 44396, 55495, 101909, 110990, 203818, 221980, 407636, 509545, 1019090, 1120999, 2038180, 2241998, 4483996, 5604995, 11209990, 22419980]

約数ペア:

[(1, 22419980), (2, 11209990), (4, 5604995), (5, 4483996), (10, 2241998), (11, 2038180), (20, 1120999), (22, 1019090), (44, 509545), (55, 407636), (101, 221980), (110, 203818), (202, 110990), (220, 101909), (404, 55495), (505, 44396), (1009, 22220), (1010, 22198), (1111, 20180), (2018, 11110), (2020, 11099), (2222, 10090), (4036, 5555), (4444, 5045)]