131024

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{431}}^1$

素因数の和:458

約数の個数: 20

約数和(自身を含む): 267840

約数和(自身を除く): 136816

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 431, 862, 1724, 3448, 6896, 8189, 16378, 32756, 65512, 131024]

約数ペア:

[(1, 131024), (2, 65512), (4, 32756), (8, 16378), (16, 8189), (19, 6896), (38, 3448), (76, 1724), (152, 862), (304, 431)]