200021560

素因数分解:

$2^3\times 5^1\times {\mathrm{5000539}}^1$

素因数の和:5000550

約数の個数: 16

約数和(自身を含む): 450048600

約数和(自身を除く): 250027040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5000539, 10001078, 20002156, 25002695, 40004312, 50005390, 100010780, 200021560]

約数ペア:

[(1, 200021560), (2, 100010780), (4, 50005390), (5, 40004312), (8, 25002695), (10, 20002156), (20, 10001078), (40, 5000539)]