7999998

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1999}}^1$

素因数の和:2056

約数の個数: 32

約数和(自身を含む): 17280000

約数和(自身を除く): 9280002

約数列:

[1, 2, 3, 6, 23, 29, 46, 58, 69, 87, 138, 174, 667, 1334, 1999, 2001, 3998, 4002, 5997, 11994, 45977, 57971, 91954, 115942, 137931, 173913, 275862, 347826, 1333333, 2666666, 3999999, 7999998]

約数ペア:

[(1, 7999998), (2, 3999999), (3, 2666666), (6, 1333333), (23, 347826), (29, 275862), (46, 173913), (58, 137931), (69, 115942), (87, 91954), (138, 57971), (174, 45977), (667, 11994), (1334, 5997), (1999, 4002), (2001, 3998)]