20127780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{111821}}^1$

素因数の和:111836

約数の個数: 36

約数和(自身を含む): 61054812

約数和(自身を除く): 40927032

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 111821, 223642, 335463, 447284, 559105, 670926, 1006389, 1118210, 1341852, 1677315, 2012778, 2236420, 3354630, 4025556, 5031945, 6709260, 10063890, 20127780]

約数ペア:

[(1, 20127780), (2, 10063890), (3, 6709260), (4, 5031945), (5, 4025556), (6, 3354630), (9, 2236420), (10, 2012778), (12, 1677315), (15, 1341852), (18, 1118210), (20, 1006389), (30, 670926), (36, 559105), (45, 447284), (60, 335463), (90, 223642), (180, 111821)]