31939720

素因数分解:

$2^3\times 5^1\times {\mathrm{479}}^1\times {\mathrm{1667}}^1$

素因数の和:2157

約数の個数: 32

約数和(自身を含む): 72057600

約数和(自身を除く): 40117880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 479, 958, 1667, 1916, 2395, 3334, 3832, 4790, 6668, 8335, 9580, 13336, 16670, 19160, 33340, 66680, 798493, 1596986, 3193972, 3992465, 6387944, 7984930, 15969860, 31939720]

約数ペア:

[(1, 31939720), (2, 15969860), (4, 7984930), (5, 6387944), (8, 3992465), (10, 3193972), (20, 1596986), (40, 798493), (479, 66680), (958, 33340), (1667, 19160), (1916, 16670), (2395, 13336), (3334, 9580), (3832, 8335), (4790, 6668)]