85814780

素因数分解:

$2^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{6673}}^1$

素因数の和:7325

約数の個数: 24

約数和(自身を含む): 180518352

約数和(自身を除く): 94703572

約数列:

[1, 2, 4, 5, 10, 20, 643, 1286, 2572, 3215, 6430, 6673, 12860, 13346, 26692, 33365, 66730, 133460, 4290739, 8581478, 17162956, 21453695, 42907390, 85814780]

約数ペア:

[(1, 85814780), (2, 42907390), (4, 21453695), (5, 17162956), (10, 8581478), (20, 4290739), (643, 133460), (1286, 66730), (2572, 33365), (3215, 26692), (6430, 13346), (6673, 12860)]