19992580

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{27017}}^1$

素因数の和:27063

約数の個数: 24

約数和(自身を含む): 43120728

約数和(自身を除く): 23128148

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 27017, 54034, 108068, 135085, 270170, 540340, 999629, 1999258, 3998516, 4998145, 9996290, 19992580]

約数ペア:

[(1, 19992580), (2, 9996290), (4, 4998145), (5, 3998516), (10, 1999258), (20, 999629), (37, 540340), (74, 270170), (148, 135085), (185, 108068), (370, 54034), (740, 27017)]