18319960

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{19913}}^1$

素因数の和:19947

約数の個数: 32

約数和(自身を含む): 43014240

約数和(自身を除く): 24694280

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 19913, 39826, 79652, 99565, 159304, 199130, 398260, 457999, 796520, 915998, 1831996, 2289995, 3663992, 4579990, 9159980, 18319960]

約数ペア:

[(1, 18319960), (2, 9159980), (4, 4579990), (5, 3663992), (8, 2289995), (10, 1831996), (20, 915998), (23, 796520), (40, 457999), (46, 398260), (92, 199130), (115, 159304), (184, 99565), (230, 79652), (460, 39826), (920, 19913)]