164844280

素因数分解:

$2^3\times 5^1\times {\mathrm{4121107}}^1$

素因数の和:4121118

約数の個数: 16

約数和(自身を含む): 370899720

約数和(自身を除く): 206055440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4121107, 8242214, 16484428, 20605535, 32968856, 41211070, 82422140, 164844280]

約数ペア:

[(1, 164844280), (2, 82422140), (4, 41211070), (5, 32968856), (8, 20605535), (10, 16484428), (20, 8242214), (40, 4121107)]