20650160

素因数分解:

$2^4\times 5^1\times {\mathrm{258127}}^1$

素因数の和:258140

約数の個数: 20

約数和(自身を含む): 48011808

約数和(自身を除く): 27361648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 258127, 516254, 1032508, 1290635, 2065016, 2581270, 4130032, 5162540, 10325080, 20650160]

約数ペア:

[(1, 20650160), (2, 10325080), (4, 5162540), (5, 4130032), (8, 2581270), (10, 2065016), (16, 1290635), (20, 1032508), (40, 516254), (80, 258127)]