123475984

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{406171}}^1$

素因数の和:406198

約数の個数: 20

約数和(自身を含む): 251826640

約数和(自身を除く): 128350656

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 406171, 812342, 1624684, 3249368, 6498736, 7717249, 15434498, 30868996, 61737992, 123475984]

約数ペア:

[(1, 123475984), (2, 61737992), (4, 30868996), (8, 15434498), (16, 7717249), (19, 6498736), (38, 3249368), (76, 1624684), (152, 812342), (304, 406171)]