201008780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{205111}}^1$

素因数の和:205134

約数の個数: 36

約数和(自身を含む): 491038128

約数和(自身を除く): 290029348

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 205111, 410222, 820444, 1025555, 1435777, 2051110, 2871554, 4102220, 5743108, 7178885, 10050439, 14357770, 20100878, 28715540, 40201756, 50252195, 100504390, 201008780]

約数ペア:

[(1, 201008780), (2, 100504390), (4, 50252195), (5, 40201756), (7, 28715540), (10, 20100878), (14, 14357770), (20, 10050439), (28, 7178885), (35, 5743108), (49, 4102220), (70, 2871554), (98, 2051110), (140, 1435777), (196, 1025555), (245, 820444), (490, 410222), (980, 205111)]