87778740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{208997}}^1$

素因数の和:209016

約数の個数: 48

約数和(自身を含む): 280893312

約数和(自身を除く): 193114572

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 208997, 417994, 626991, 835988, 1044985, 1253982, 1462979, 2089970, 2507964, 2925958, 3134955, 4179940, 4388937, 5851916, 6269910, 7314895, 8777874, 12539820, 14629790, 17555748, 21944685, 29259580, 43889370, 87778740]

約数ペア:

[(1, 87778740), (2, 43889370), (3, 29259580), (4, 21944685), (5, 17555748), (6, 14629790), (7, 12539820), (10, 8777874), (12, 7314895), (14, 6269910), (15, 5851916), (20, 4388937), (21, 4179940), (28, 3134955), (30, 2925958), (35, 2507964), (42, 2089970), (60, 1462979), (70, 1253982), (84, 1044985), (105, 835988), (140, 626991), (210, 417994), (420, 208997)]