81379970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{1162571}}^1$

素因数の和:1162585

約数の個数: 16

約数和(自身を含む): 167410368

約数和(自身を除く): 86030398

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 1162571, 2325142, 5812855, 8137997, 11625710, 16275994, 40689985, 81379970]

約数ペア:

[(1, 81379970), (2, 40689985), (5, 16275994), (7, 11625710), (10, 8137997), (14, 5812855), (35, 2325142), (70, 1162571)]