128548180

素因数分解:

$2^2\times 5^1\times {\mathrm{1777}}^1\times {\mathrm{3617}}^1$

素因数の和:5403

約数の個数: 24

約数和(自身を含む): 270177768

約数和(自身を除く): 141629588

約数列:

[1, 2, 4, 5, 10, 20, 1777, 3554, 3617, 7108, 7234, 8885, 14468, 17770, 18085, 35540, 36170, 72340, 6427409, 12854818, 25709636, 32137045, 64274090, 128548180]

約数ペア:

[(1, 128548180), (2, 64274090), (4, 32137045), (5, 25709636), (10, 12854818), (20, 6427409), (1777, 72340), (3554, 36170), (3617, 35540), (7108, 18085), (7234, 17770), (8885, 14468)]