2749640

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1297}}^1$

素因数の和:1361

約数の個数: 32

約数和(自身を含む): 6308280

約数和(自身を除く): 3558640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 1297, 2120, 2594, 5188, 6485, 10376, 12970, 25940, 51880, 68741, 137482, 274964, 343705, 549928, 687410, 1374820, 2749640]

約数ペア:

[(1, 2749640), (2, 1374820), (4, 687410), (5, 549928), (8, 343705), (10, 274964), (20, 137482), (40, 68741), (53, 51880), (106, 25940), (212, 12970), (265, 10376), (424, 6485), (530, 5188), (1060, 2594), (1297, 2120)]