205396520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{733559}}^1$

素因数の和:733577

約数の個数: 32

約数和(自身を含む): 528163200

約数和(自身を除く): 322766680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 733559, 1467118, 2934236, 3667795, 5134913, 5868472, 7335590, 10269826, 14671180, 20539652, 25674565, 29342360, 41079304, 51349130, 102698260, 205396520]

約数ペア:

[(1, 205396520), (2, 102698260), (4, 51349130), (5, 41079304), (7, 29342360), (8, 25674565), (10, 20539652), (14, 14671180), (20, 10269826), (28, 7335590), (35, 5868472), (40, 5134913), (56, 3667795), (70, 2934236), (140, 1467118), (280, 733559)]