164656280

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{216653}}^1$

素因数の和:216683

約数の個数: 32

約数和(自身を含む): 389977200

約数和(自身を除く): 225320920

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 216653, 433306, 866612, 1083265, 1733224, 2166530, 4116407, 4333060, 8232814, 8666120, 16465628, 20582035, 32931256, 41164070, 82328140, 164656280]

約数ペア:

[(1, 164656280), (2, 82328140), (4, 41164070), (5, 32931256), (8, 20582035), (10, 16465628), (19, 8666120), (20, 8232814), (38, 4333060), (40, 4116407), (76, 2166530), (95, 1733224), (152, 1083265), (190, 866612), (380, 433306), (760, 216653)]