403977910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{1999}}^1\times {\mathrm{2887}}^1$

素因数の和:4900

約数の個数: 32

約数和(自身を含む): 831744000

約数和(自身を除く): 427766090

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 1999, 2887, 3998, 5774, 9995, 13993, 14435, 19990, 20209, 27986, 28870, 40418, 69965, 101045, 139930, 202090, 5771113, 11542226, 28855565, 40397791, 57711130, 80795582, 201988955, 403977910]

約数ペア:

[(1, 403977910), (2, 201988955), (5, 80795582), (7, 57711130), (10, 40397791), (14, 28855565), (35, 11542226), (70, 5771113), (1999, 202090), (2887, 139930), (3998, 101045), (5774, 69965), (9995, 40418), (13993, 28870), (14435, 27986), (19990, 20209)]