4252420

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2389}}^1$

素因数の和:2487

約数の個数: 24

約数和(自身を含む): 9034200

約数和(自身を除く): 4781780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 2389, 4778, 9556, 11945, 23890, 47780, 212621, 425242, 850484, 1063105, 2126210, 4252420]

約数ペア:

[(1, 4252420), (2, 2126210), (4, 1063105), (5, 850484), (10, 425242), (20, 212621), (89, 47780), (178, 23890), (356, 11945), (445, 9556), (890, 4778), (1780, 2389)]