19809770

素因数分解:

$2^1\times 5^1\times {\mathrm{313}}^1\times {\mathrm{6329}}^1$

素因数の和:6649

約数の個数: 16

約数和(自身を含む): 35777160

約数和(自身を除く): 15967390

約数列:

[1, 2, 5, 10, 313, 626, 1565, 3130, 6329, 12658, 31645, 63290, 1980977, 3961954, 9904885, 19809770]

約数ペア:

[(1, 19809770), (2, 9904885), (5, 3961954), (10, 1980977), (313, 63290), (626, 31645), (1565, 12658), (3130, 6329)]