20398970

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{1063}}^1$

素因数の和:1190

約数の個数: 32

約数和(自身を含む): 39070080

約数和(自身を除く): 18671110

約数列:

[1, 2, 5, 10, 19, 38, 95, 101, 190, 202, 505, 1010, 1063, 1919, 2126, 3838, 5315, 9595, 10630, 19190, 20197, 40394, 100985, 107363, 201970, 214726, 536815, 1073630, 2039897, 4079794, 10199485, 20398970]

約数ペア:

[(1, 20398970), (2, 10199485), (5, 4079794), (10, 2039897), (19, 1073630), (38, 536815), (95, 214726), (101, 201970), (190, 107363), (202, 100985), (505, 40394), (1010, 20197), (1063, 19190), (1919, 10630), (2126, 9595), (3838, 5315)]