18845080

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{1877}}^1$

素因数の和:2139

約数の個数: 32

約数和(自身を含む): 42593040

約数和(自身を除く): 23747960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 1877, 2008, 2510, 3754, 5020, 7508, 9385, 10040, 15016, 18770, 37540, 75080, 471127, 942254, 1884508, 2355635, 3769016, 4711270, 9422540, 18845080]

約数ペア:

[(1, 18845080), (2, 9422540), (4, 4711270), (5, 3769016), (8, 2355635), (10, 1884508), (20, 942254), (40, 471127), (251, 75080), (502, 37540), (1004, 18770), (1255, 15016), (1877, 10040), (2008, 9385), (2510, 7508), (3754, 5020)]