55220680

素因数分解:

$2^3\times 5^1\times {\mathrm{1380517}}^1$

素因数の和:1380528

約数の個数: 16

約数和(自身を含む): 124246620

約数和(自身を除く): 69025940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1380517, 2761034, 5522068, 6902585, 11044136, 13805170, 27610340, 55220680]

約数ペア:

[(1, 55220680), (2, 27610340), (4, 13805170), (5, 11044136), (8, 6902585), (10, 5522068), (20, 2761034), (40, 1380517)]