18082040

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{1801}}^1$

素因数の和:2063

約数の個数: 32

約数和(自身を含む): 40869360

約数和(自身を除く): 22787320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 1801, 2008, 2510, 3602, 5020, 7204, 9005, 10040, 14408, 18010, 36020, 72040, 452051, 904102, 1808204, 2260255, 3616408, 4520510, 9041020, 18082040]

約数ペア:

[(1, 18082040), (2, 9041020), (4, 4520510), (5, 3616408), (8, 2260255), (10, 1808204), (20, 904102), (40, 452051), (251, 72040), (502, 36020), (1004, 18010), (1255, 14408), (1801, 10040), (2008, 9005), (2510, 7204), (3602, 5020)]