200428880

素因数分解:

$2^4\times 5^1\times {\mathrm{2505361}}^1$

素因数の和:2505374

約数の個数: 20

約数和(自身を含む): 465997332

約数和(自身を除く): 265568452

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2505361, 5010722, 10021444, 12526805, 20042888, 25053610, 40085776, 50107220, 100214440, 200428880]

約数ペア:

[(1, 200428880), (2, 100214440), (4, 50107220), (5, 40085776), (8, 25053610), (10, 20042888), (16, 12526805), (20, 10021444), (40, 5010722), (80, 2505361)]