18299720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{19891}}^1$

素因数の和:19925

約数の個数: 32

約数和(自身を含む): 42966720

約数和(自身を除く): 24667000

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 19891, 39782, 79564, 99455, 159128, 198910, 397820, 457493, 795640, 914986, 1829972, 2287465, 3659944, 4574930, 9149860, 18299720]

約数ペア:

[(1, 18299720), (2, 9149860), (4, 4574930), (5, 3659944), (8, 2287465), (10, 1829972), (20, 914986), (23, 795640), (40, 457493), (46, 397820), (92, 198910), (115, 159128), (184, 99455), (230, 79564), (460, 39782), (920, 19891)]