249143480

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{57143}}^1$

素因数の和:57263

約数の個数: 32

約数和(自身を含む): 565725600

約数和(自身を除く): 316582120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 57143, 114286, 228572, 285715, 457144, 571430, 1142860, 2285720, 6228587, 12457174, 24914348, 31142935, 49828696, 62285870, 124571740, 249143480]

約数ペア:

[(1, 249143480), (2, 124571740), (4, 62285870), (5, 49828696), (8, 31142935), (10, 24914348), (20, 12457174), (40, 6228587), (109, 2285720), (218, 1142860), (436, 571430), (545, 457144), (872, 285715), (1090, 228572), (2180, 114286), (4360, 57143)]