1909265080

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{343393}}^1$

素因数の和:343543

約数の個数: 32

約数和(自身を含む): 4326764400

約数和(自身を除く): 2417499320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 343393, 686786, 1373572, 1716965, 2747144, 3433930, 6867860, 13735720, 47731627, 95463254, 190926508, 238658135, 381853016, 477316270, 954632540, 1909265080]

約数ペア:

[(1, 1909265080), (2, 954632540), (4, 477316270), (5, 381853016), (8, 238658135), (10, 190926508), (20, 95463254), (40, 47731627), (139, 13735720), (278, 6867860), (556, 3433930), (695, 2747144), (1112, 1716965), (1390, 1373572), (2780, 686786), (5560, 343393)]