17982860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{128449}}^1$

素因数の和:128465

約数の個数: 24

約数和(自身を含む): 43159200

約数和(自身を除く): 25176340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 128449, 256898, 513796, 642245, 899143, 1284490, 1798286, 2568980, 3596572, 4495715, 8991430, 17982860]

約数ペア:

[(1, 17982860), (2, 8991430), (4, 4495715), (5, 3596572), (7, 2568980), (10, 1798286), (14, 1284490), (20, 899143), (28, 642245), (35, 513796), (70, 256898), (140, 128449)]