20285090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1471}}^1$

素因数の和:1682

約数の個数: 32

約数和(自身を含む): 41969664

約数和(自身を除く): 21684574

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 197, 394, 985, 1379, 1471, 1970, 2758, 2942, 6895, 7355, 10297, 13790, 14710, 20594, 51485, 102970, 289787, 579574, 1448935, 2028509, 2897870, 4057018, 10142545, 20285090]

約数ペア:

[(1, 20285090), (2, 10142545), (5, 4057018), (7, 2897870), (10, 2028509), (14, 1448935), (35, 579574), (70, 289787), (197, 102970), (394, 51485), (985, 20594), (1379, 14710), (1471, 13790), (1970, 10297), (2758, 7355), (2942, 6895)]