81740260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{583859}}^1$

素因数の和:583875

約数の個数: 24

約数和(自身を含む): 196176960

約数和(自身を除く): 114436700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 583859, 1167718, 2335436, 2919295, 4087013, 5838590, 8174026, 11677180, 16348052, 20435065, 40870130, 81740260]

約数ペア:

[(1, 81740260), (2, 40870130), (4, 20435065), (5, 16348052), (7, 11677180), (10, 8174026), (14, 5838590), (20, 4087013), (28, 2919295), (35, 2335436), (70, 1167718), (140, 583859)]