19787220

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{36643}}^1$

素因数の和:36661

約数の個数: 48

約数和(自身を含む): 61561920

約数和(自身を除く): 41774700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 36643, 73286, 109929, 146572, 183215, 219858, 329787, 366430, 439716, 549645, 659574, 732860, 989361, 1099290, 1319148, 1648935, 1978722, 2198580, 3297870, 3957444, 4946805, 6595740, 9893610, 19787220]

約数ペア:

[(1, 19787220), (2, 9893610), (3, 6595740), (4, 4946805), (5, 3957444), (6, 3297870), (9, 2198580), (10, 1978722), (12, 1648935), (15, 1319148), (18, 1099290), (20, 989361), (27, 732860), (30, 659574), (36, 549645), (45, 439716), (54, 366430), (60, 329787), (90, 219858), (108, 183215), (135, 146572), (180, 109929), (270, 73286), (540, 36643)]