20720035

素因数分解:

$5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{4259}}^1$

素因数の和:4410

約数の個数: 16

約数和(自身を含む): 28627200

約数和(自身を除く): 7907165

約数列:

[1, 5, 7, 35, 139, 695, 973, 4259, 4865, 21295, 29813, 149065, 592001, 2960005, 4144007, 20720035]

約数ペア:

[(1, 20720035), (5, 4144007), (7, 2960005), (35, 592001), (139, 149065), (695, 29813), (973, 21295), (4259, 4865)]