81696800

素因数分解:

$2^5\times 5^2\times {\mathrm{102121}}^1$

素因数の和:102141

約数の個数: 36

約数和(自身を含む): 199444266

約数和(自身を除く): 117747466

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 102121, 204242, 408484, 510605, 816968, 1021210, 1633936, 2042420, 2553025, 3267872, 4084840, 5106050, 8169680, 10212100, 16339360, 20424200, 40848400, 81696800]

約数ペア:

[(1, 81696800), (2, 40848400), (4, 20424200), (5, 16339360), (8, 10212100), (10, 8169680), (16, 5106050), (20, 4084840), (25, 3267872), (32, 2553025), (40, 2042420), (50, 1633936), (80, 1021210), (100, 816968), (160, 510605), (200, 408484), (400, 204242), (800, 102121)]