2289080

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{643}}^1$

素因数の和:743

約数の個数: 32

約数和(自身を含む): 5216400

約数和(自身を除く): 2927320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 643, 712, 890, 1286, 1780, 2572, 3215, 3560, 5144, 6430, 12860, 25720, 57227, 114454, 228908, 286135, 457816, 572270, 1144540, 2289080]

約数ペア:

[(1, 2289080), (2, 1144540), (4, 572270), (5, 457816), (8, 286135), (10, 228908), (20, 114454), (40, 57227), (89, 25720), (178, 12860), (356, 6430), (445, 5144), (643, 3560), (712, 3215), (890, 2572), (1286, 1780)]