2803480

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{643}}^1$

素因数の和:763

約数の個数: 32

約数和(自身を含む): 6375600

約数和(自身を除く): 3572120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 643, 872, 1090, 1286, 2180, 2572, 3215, 4360, 5144, 6430, 12860, 25720, 70087, 140174, 280348, 350435, 560696, 700870, 1401740, 2803480]

約数ペア:

[(1, 2803480), (2, 1401740), (4, 700870), (5, 560696), (8, 350435), (10, 280348), (20, 140174), (40, 70087), (109, 25720), (218, 12860), (436, 6430), (545, 5144), (643, 4360), (872, 3215), (1090, 2572), (1286, 2180)]