19804810

素因数分解:

$2^1\times 5^1\times {\mathrm{829}}^1\times {\mathrm{2389}}^1$

素因数の和:3225

約数の個数: 16

約数和(自身を含む): 35706600

約数和(自身を除く): 15901790

約数列:

[1, 2, 5, 10, 829, 1658, 2389, 4145, 4778, 8290, 11945, 23890, 1980481, 3960962, 9902405, 19804810]

約数ペア:

[(1, 19804810), (2, 9902405), (5, 3960962), (10, 1980481), (829, 23890), (1658, 11945), (2389, 8290), (4145, 4778)]