440140820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{3143863}}^1$

素因数の和:3143879

約数の個数: 24

約数和(自身を含む): 1056338304

約数和(自身を除く): 616197484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 3143863, 6287726, 12575452, 15719315, 22007041, 31438630, 44014082, 62877260, 88028164, 110035205, 220070410, 440140820]

約数ペア:

[(1, 440140820), (2, 220070410), (4, 110035205), (5, 88028164), (7, 62877260), (10, 44014082), (14, 31438630), (20, 22007041), (28, 15719315), (35, 12575452), (70, 6287726), (140, 3143863)]