2019970520

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{239333}}^1$

素因数の和:239555

約数の個数: 32

約数和(自身を含む): 4566492720

約数和(自身を除く): 2546522200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 4220, 8440, 239333, 478666, 957332, 1196665, 1914664, 2393330, 4786660, 9573320, 50499263, 100998526, 201997052, 252496315, 403994104, 504992630, 1009985260, 2019970520]

約数ペア:

[(1, 2019970520), (2, 1009985260), (4, 504992630), (5, 403994104), (8, 252496315), (10, 201997052), (20, 100998526), (40, 50499263), (211, 9573320), (422, 4786660), (844, 2393330), (1055, 1914664), (1688, 1196665), (2110, 957332), (4220, 478666), (8440, 239333)]