315664

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{181}}^1$

素因数の和:298

約数の個数: 20

約数和(自身を含む): 620620

約数和(自身を除く): 304956

約数列:

[1, 2, 4, 8, 16, 109, 181, 218, 362, 436, 724, 872, 1448, 1744, 2896, 19729, 39458, 78916, 157832, 315664]

約数ペア:

[(1, 315664), (2, 157832), (4, 78916), (8, 39458), (16, 19729), (109, 2896), (181, 1744), (218, 1448), (362, 872), (436, 724)]