90785840

素因数分解:

$2^4\times 5^1\times {\mathrm{431}}^1\times {\mathrm{2633}}^1$

素因数の和:3077

約数の個数: 40

約数和(自身を含む): 211647168

約数和(自身を除く): 120861328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 431, 862, 1724, 2155, 2633, 3448, 4310, 5266, 6896, 8620, 10532, 13165, 17240, 21064, 26330, 34480, 42128, 52660, 105320, 210640, 1134823, 2269646, 4539292, 5674115, 9078584, 11348230, 18157168, 22696460, 45392920, 90785840]

約数ペア:

[(1, 90785840), (2, 45392920), (4, 22696460), (5, 18157168), (8, 11348230), (10, 9078584), (16, 5674115), (20, 4539292), (40, 2269646), (80, 1134823), (431, 210640), (862, 105320), (1724, 52660), (2155, 42128), (2633, 34480), (3448, 26330), (4310, 21064), (5266, 17240), (6896, 13165), (8620, 10532)]