678896

素因数分解:

$2^4\times {\mathrm{151}}^1\times {\mathrm{281}}^1$

素因数の和:440

約数の個数: 20

約数和(自身を含む): 1328784

約数和(自身を除く): 649888

約数列:

[1, 2, 4, 8, 16, 151, 281, 302, 562, 604, 1124, 1208, 2248, 2416, 4496, 42431, 84862, 169724, 339448, 678896]

約数ペア:

[(1, 678896), (2, 339448), (4, 169724), (8, 84862), (16, 42431), (151, 4496), (281, 2416), (302, 2248), (562, 1208), (604, 1124)]