20642860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{147449}}^1$

素因数の和:147465

約数の個数: 24

約数和(自身を含む): 49543200

約数和(自身を除く): 28900340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 147449, 294898, 589796, 737245, 1032143, 1474490, 2064286, 2948980, 4128572, 5160715, 10321430, 20642860]

約数ペア:

[(1, 20642860), (2, 10321430), (4, 5160715), (5, 4128572), (7, 2948980), (10, 2064286), (14, 1474490), (20, 1032143), (28, 737245), (35, 589796), (70, 294898), (140, 147449)]