2019500975

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{449}}^1\times {\mathrm{557}}^1$

素因数の和:1052

約数の個数: 48

約数和(自身を含む): 2802276000

約数和(自身を除く): 782775025

約数列:

[1, 5, 17, 19, 25, 85, 95, 323, 425, 449, 475, 557, 1615, 2245, 2785, 7633, 8075, 8531, 9469, 10583, 11225, 13925, 38165, 42655, 47345, 52915, 145027, 179911, 190825, 213275, 236725, 250093, 264575, 725135, 899555, 1250465, 3625675, 4251581, 4497775, 4751767, 6252325, 21257905, 23758835, 80780039, 106289525, 118794175, 403900195, 2019500975]

約数ペア:

[(1, 2019500975), (5, 403900195), (17, 118794175), (19, 106289525), (25, 80780039), (85, 23758835), (95, 21257905), (323, 6252325), (425, 4751767), (449, 4497775), (475, 4251581), (557, 3625675), (1615, 1250465), (2245, 899555), (2785, 725135), (7633, 264575), (8075, 250093), (8531, 236725), (9469, 213275), (10583, 190825), (11225, 179911), (13925, 145027), (38165, 52915), (42655, 47345)]