165857480

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{12527}}^1$

素因数の和:12869

約数の個数: 32

約数和(自身を含む): 374336640

約数和(自身を除く): 208479160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 662, 1324, 1655, 2648, 3310, 6620, 12527, 13240, 25054, 50108, 62635, 100216, 125270, 250540, 501080, 4146437, 8292874, 16585748, 20732185, 33171496, 41464370, 82928740, 165857480]

約数ペア:

[(1, 165857480), (2, 82928740), (4, 41464370), (5, 33171496), (8, 20732185), (10, 16585748), (20, 8292874), (40, 4146437), (331, 501080), (662, 250540), (1324, 125270), (1655, 100216), (2648, 62635), (3310, 50108), (6620, 25054), (12527, 13240)]