2742220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1$

素因数の和:274

約数の個数: 48

約数和(自身を含む): 6350400

約数和(自身を除く): 3608180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 199, 212, 260, 265, 398, 530, 689, 796, 995, 1060, 1378, 1990, 2587, 2756, 3445, 3980, 5174, 6890, 10348, 10547, 12935, 13780, 21094, 25870, 42188, 51740, 52735, 105470, 137111, 210940, 274222, 548444, 685555, 1371110, 2742220]

約数ペア:

[(1, 2742220), (2, 1371110), (4, 685555), (5, 548444), (10, 274222), (13, 210940), (20, 137111), (26, 105470), (52, 52735), (53, 51740), (65, 42188), (106, 25870), (130, 21094), (199, 13780), (212, 12935), (260, 10547), (265, 10348), (398, 6890), (530, 5174), (689, 3980), (796, 3445), (995, 2756), (1060, 2587), (1378, 1990)]