1921863820

素因数分解:

$2^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{337}}^1\times {\mathrm{911}}^1$

素因数の和:1570

約数の個数: 48

約数和(自身を含む): 4065280128

約数和(自身を除く): 2143416308

約数列:

[1, 2, 4, 5, 10, 20, 313, 337, 626, 674, 911, 1252, 1348, 1565, 1685, 1822, 3130, 3370, 3644, 4555, 6260, 6740, 9110, 18220, 105481, 210962, 285143, 307007, 421924, 527405, 570286, 614014, 1054810, 1140572, 1228028, 1425715, 1535035, 2109620, 2851430, 3070070, 5702860, 6140140, 96093191, 192186382, 384372764, 480465955, 960931910, 1921863820]

約数ペア:

[(1, 1921863820), (2, 960931910), (4, 480465955), (5, 384372764), (10, 192186382), (20, 96093191), (313, 6140140), (337, 5702860), (626, 3070070), (674, 2851430), (911, 2109620), (1252, 1535035), (1348, 1425715), (1565, 1228028), (1685, 1140572), (1822, 1054810), (3130, 614014), (3370, 570286), (3644, 527405), (4555, 421924), (6260, 307007), (6740, 285143), (9110, 210962), (18220, 105481)]