20893520

素因数分解:

$2^4\times 5^1\times {\mathrm{261169}}^1$

素因数の和:261182

約数の個数: 20

約数和(自身を含む): 48577620

約数和(自身を除く): 27684100

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 261169, 522338, 1044676, 1305845, 2089352, 2611690, 4178704, 5223380, 10446760, 20893520]

約数ペア:

[(1, 20893520), (2, 10446760), (4, 5223380), (5, 4178704), (8, 2611690), (10, 2089352), (16, 1305845), (20, 1044676), (40, 522338), (80, 261169)]