39427880

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{2287}}^1$

素因数の和:2729

約数の個数: 32

約数和(自身を含む): 88957440

約数和(自身を除く): 49529560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 862, 1724, 2155, 2287, 3448, 4310, 4574, 8620, 9148, 11435, 17240, 18296, 22870, 45740, 91480, 985697, 1971394, 3942788, 4928485, 7885576, 9856970, 19713940, 39427880]

約数ペア:

[(1, 39427880), (2, 19713940), (4, 9856970), (5, 7885576), (8, 4928485), (10, 3942788), (20, 1971394), (40, 985697), (431, 91480), (862, 45740), (1724, 22870), (2155, 18296), (2287, 17240), (3448, 11435), (4310, 9148), (4574, 8620)]