38399960

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{1493}}^1$

素因数の和:2147

約数の個数: 32

約数和(自身を含む): 86592240

約数和(自身を除く): 48192280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 1493, 2572, 2986, 3215, 5144, 5972, 6430, 7465, 11944, 12860, 14930, 25720, 29860, 59720, 959999, 1919998, 3839996, 4799995, 7679992, 9599990, 19199980, 38399960]

約数ペア:

[(1, 38399960), (2, 19199980), (4, 9599990), (5, 7679992), (8, 4799995), (10, 3839996), (20, 1919998), (40, 959999), (643, 59720), (1286, 29860), (1493, 25720), (2572, 14930), (2986, 12860), (3215, 11944), (5144, 7465), (5972, 6430)]