12890512

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{42403}}^1$

素因数の和:42430

約数の個数: 20

約数和(自身を含む): 26290480

約数和(自身を除く): 13399968

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 42403, 84806, 169612, 339224, 678448, 805657, 1611314, 3222628, 6445256, 12890512]

約数ペア:

[(1, 12890512), (2, 6445256), (4, 3222628), (8, 1611314), (16, 805657), (19, 678448), (38, 339224), (76, 169612), (152, 84806), (304, 42403)]