128925460

素因数分解:

$2^2\times 5^1\times {\mathrm{383}}^1\times {\mathrm{16831}}^1$

素因数の和:17223

約数の個数: 24

約数和(自身を含む): 271466496

約数和(自身を除く): 142541036

約数列:

[1, 2, 4, 5, 10, 20, 383, 766, 1532, 1915, 3830, 7660, 16831, 33662, 67324, 84155, 168310, 336620, 6446273, 12892546, 25785092, 32231365, 64462730, 128925460]

約数ペア:

[(1, 128925460), (2, 64462730), (4, 32231365), (5, 25785092), (10, 12892546), (20, 6446273), (383, 336620), (766, 168310), (1532, 84155), (1915, 67324), (3830, 33662), (7660, 16831)]