85860040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{306643}}^1$

素因数の和:306661

約数の個数: 32

約数和(自身を含む): 220783680

約数和(自身を除く): 134923640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 306643, 613286, 1226572, 1533215, 2146501, 2453144, 3066430, 4293002, 6132860, 8586004, 10732505, 12265720, 17172008, 21465010, 42930020, 85860040]

約数ペア:

[(1, 85860040), (2, 42930020), (4, 21465010), (5, 17172008), (7, 12265720), (8, 10732505), (10, 8586004), (14, 6132860), (20, 4293002), (28, 3066430), (35, 2453144), (40, 2146501), (56, 1533215), (70, 1226572), (140, 613286), (280, 306643)]