27777780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{154321}}^1$

素因数の和:154336

約数の個数: 36

約数和(自身を含む): 84259812

約数和(自身を除く): 56482032

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 154321, 308642, 462963, 617284, 771605, 925926, 1388889, 1543210, 1851852, 2314815, 2777778, 3086420, 4629630, 5555556, 6944445, 9259260, 13888890, 27777780]

約数ペア:

[(1, 27777780), (2, 13888890), (3, 9259260), (4, 6944445), (5, 5555556), (6, 4629630), (9, 3086420), (10, 2777778), (12, 2314815), (15, 1851852), (18, 1543210), (20, 1388889), (30, 925926), (36, 771605), (45, 617284), (60, 462963), (90, 308642), (180, 154321)]