87480520

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{30803}}^1$

素因数の和:30885

約数の個数: 32

約数和(自身を含む): 199609920

約数和(自身を除く): 112129400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 30803, 61606, 123212, 154015, 246424, 308030, 616060, 1232120, 2187013, 4374026, 8748052, 10935065, 17496104, 21870130, 43740260, 87480520]

約数ペア:

[(1, 87480520), (2, 43740260), (4, 21870130), (5, 17496104), (8, 10935065), (10, 8748052), (20, 4374026), (40, 2187013), (71, 1232120), (142, 616060), (284, 308030), (355, 246424), (568, 154015), (710, 123212), (1420, 61606), (2840, 30803)]