81352980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{451961}}^1$

素因数の和:451976

約数の個数: 36

約数和(自身を含む): 246771252

約数和(自身を除く): 165418272

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 451961, 903922, 1355883, 1807844, 2259805, 2711766, 4067649, 4519610, 5423532, 6779415, 8135298, 9039220, 13558830, 16270596, 20338245, 27117660, 40676490, 81352980]

約数ペア:

[(1, 81352980), (2, 40676490), (3, 27117660), (4, 20338245), (5, 16270596), (6, 13558830), (9, 9039220), (10, 8135298), (12, 6779415), (15, 5423532), (18, 4519610), (20, 4067649), (30, 2711766), (36, 2259805), (45, 1807844), (60, 1355883), (90, 903922), (180, 451961)]