18809860

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{397}}^1$

素因数の和:532

約数の個数: 48

約数和(自身を含む): 41723136

約数和(自身を除く): 22913276

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 103, 115, 206, 230, 397, 412, 460, 515, 794, 1030, 1588, 1985, 2060, 2369, 3970, 4738, 7940, 9131, 9476, 11845, 18262, 23690, 36524, 40891, 45655, 47380, 81782, 91310, 163564, 182620, 204455, 408910, 817820, 940493, 1880986, 3761972, 4702465, 9404930, 18809860]

約数ペア:

[(1, 18809860), (2, 9404930), (4, 4702465), (5, 3761972), (10, 1880986), (20, 940493), (23, 817820), (46, 408910), (92, 204455), (103, 182620), (115, 163564), (206, 91310), (230, 81782), (397, 47380), (412, 45655), (460, 40891), (515, 36524), (794, 23690), (1030, 18262), (1588, 11845), (1985, 9476), (2060, 9131), (2369, 7940), (3970, 4738)]