64490020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{460643}}^1$

素因数の和:460659

約数の個数: 24

約数和(自身を含む): 154776384

約数和(自身を除く): 90286364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 460643, 921286, 1842572, 2303215, 3224501, 4606430, 6449002, 9212860, 12898004, 16122505, 32245010, 64490020]

約数ペア:

[(1, 64490020), (2, 32245010), (4, 16122505), (5, 12898004), (7, 9212860), (10, 6449002), (14, 4606430), (20, 3224501), (28, 2303215), (35, 1842572), (70, 921286), (140, 460643)]