55680520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{198859}}^1$

素因数の和:198877

約数の個数: 32

約数和(自身を含む): 143179200

約数和(自身を除く): 87498680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 198859, 397718, 795436, 994295, 1392013, 1590872, 1988590, 2784026, 3977180, 5568052, 6960065, 7954360, 11136104, 13920130, 27840260, 55680520]

約数ペア:

[(1, 55680520), (2, 27840260), (4, 13920130), (5, 11136104), (7, 7954360), (8, 6960065), (10, 5568052), (14, 3977180), (20, 2784026), (28, 1988590), (35, 1590872), (40, 1392013), (56, 994295), (70, 795436), (140, 397718), (280, 198859)]