1781680

素因数分解:

$2^4\times 5^1\times {\mathrm{22271}}^1$

素因数の和:22284

約数の個数: 20

約数和(自身を含む): 4142592

約数和(自身を除く): 2360912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 22271, 44542, 89084, 111355, 178168, 222710, 356336, 445420, 890840, 1781680]

約数ペア:

[(1, 1781680), (2, 890840), (4, 445420), (5, 356336), (8, 222710), (10, 178168), (16, 111355), (20, 89084), (40, 44542), (80, 22271)]