38869960

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{6991}}^1$

素因数の和:7141

約数の個数: 32

約数和(自身を含む): 88099200

約数和(自身を除く): 49229240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 6991, 13982, 27964, 34955, 55928, 69910, 139820, 279640, 971749, 1943498, 3886996, 4858745, 7773992, 9717490, 19434980, 38869960]

約数ペア:

[(1, 38869960), (2, 19434980), (4, 9717490), (5, 7773992), (8, 4858745), (10, 3886996), (20, 1943498), (40, 971749), (139, 279640), (278, 139820), (556, 69910), (695, 55928), (1112, 34955), (1390, 27964), (2780, 13982), (5560, 6991)]