19378760

素因数分解:

$2^3\times 5^1\times {\mathrm{269}}^1\times {\mathrm{1801}}^1$

素因数の和:2081

約数の個数: 32

約数和(自身を含む): 43788600

約数和(自身を除く): 24409840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 269, 538, 1076, 1345, 1801, 2152, 2690, 3602, 5380, 7204, 9005, 10760, 14408, 18010, 36020, 72040, 484469, 968938, 1937876, 2422345, 3875752, 4844690, 9689380, 19378760]

約数ペア:

[(1, 19378760), (2, 9689380), (4, 4844690), (5, 3875752), (8, 2422345), (10, 1937876), (20, 968938), (40, 484469), (269, 72040), (538, 36020), (1076, 18010), (1345, 14408), (1801, 10760), (2152, 9005), (2690, 7204), (3602, 5380)]