86640260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{618859}}^1$

素因数の和:618875

約数の個数: 24

約数和(自身を含む): 207936960

約数和(自身を除く): 121296700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 618859, 1237718, 2475436, 3094295, 4332013, 6188590, 8664026, 12377180, 17328052, 21660065, 43320130, 86640260]

約数ペア:

[(1, 86640260), (2, 43320130), (4, 21660065), (5, 17328052), (7, 12377180), (10, 8664026), (14, 6188590), (20, 4332013), (28, 3094295), (35, 2475436), (70, 1237718), (140, 618859)]