87450020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{624643}}^1$

素因数の和:624659

約数の個数: 24

約数和(自身を含む): 209880384

約数和(自身を除く): 122430364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 624643, 1249286, 2498572, 3123215, 4372501, 6246430, 8745002, 12492860, 17490004, 21862505, 43725010, 87450020]

約数ペア:

[(1, 87450020), (2, 43725010), (4, 21862505), (5, 17490004), (7, 12492860), (10, 8745002), (14, 6246430), (20, 4372501), (28, 3123215), (35, 2498572), (70, 1249286), (140, 624643)]