19788430

素因数分解:

$2^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{5087}}^1$

素因数の和:5483

約数の個数: 16

約数和(自身を含む): 35717760

約数和(自身を除く): 15929330

約数列:

[1, 2, 5, 10, 389, 778, 1945, 3890, 5087, 10174, 25435, 50870, 1978843, 3957686, 9894215, 19788430]

約数ペア:

[(1, 19788430), (2, 9894215), (5, 3957686), (10, 1978843), (389, 50870), (778, 25435), (1945, 10174), (3890, 5087)]