290433388

素因数分解:

$2^2\times 7^2\times {\mathrm{79}}^1\times {\mathrm{18757}}^1$

素因数の和:18854

約数の個数: 36

約数和(自身を含む): 598755360

約数和(自身を除く): 308321972

約数列:

[1, 2, 4, 7, 14, 28, 49, 79, 98, 158, 196, 316, 553, 1106, 2212, 3871, 7742, 15484, 18757, 37514, 75028, 131299, 262598, 525196, 919093, 1481803, 1838186, 2963606, 3676372, 5927212, 10372621, 20745242, 41490484, 72608347, 145216694, 290433388]

約数ペア:

[(1, 290433388), (2, 145216694), (4, 72608347), (7, 41490484), (14, 20745242), (28, 10372621), (49, 5927212), (79, 3676372), (98, 2963606), (158, 1838186), (196, 1481803), (316, 919093), (553, 525196), (1106, 262598), (2212, 131299), (3871, 75028), (7742, 37514), (15484, 18757)]