18264220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{353}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 41630400

約数和(自身を除く): 23366180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 199, 260, 353, 398, 706, 796, 995, 1412, 1765, 1990, 2587, 3530, 3980, 4589, 5174, 7060, 9178, 10348, 12935, 18356, 22945, 25870, 45890, 51740, 70247, 91780, 140494, 280988, 351235, 702470, 913211, 1404940, 1826422, 3652844, 4566055, 9132110, 18264220]

約数ペア:

[(1, 18264220), (2, 9132110), (4, 4566055), (5, 3652844), (10, 1826422), (13, 1404940), (20, 913211), (26, 702470), (52, 351235), (65, 280988), (130, 140494), (199, 91780), (260, 70247), (353, 51740), (398, 45890), (706, 25870), (796, 22945), (995, 18356), (1412, 12935), (1765, 10348), (1990, 9178), (2587, 7060), (3530, 5174), (3980, 4589)]