15440120

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2777}}^1$

素因数の和:2927

約数の個数: 32

約数和(自身を含む): 35002800

約数和(自身を除く): 19562680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2777, 2780, 5554, 5560, 11108, 13885, 22216, 27770, 55540, 111080, 386003, 772006, 1544012, 1930015, 3088024, 3860030, 7720060, 15440120]

約数ペア:

[(1, 15440120), (2, 7720060), (4, 3860030), (5, 3088024), (8, 1930015), (10, 1544012), (20, 772006), (40, 386003), (139, 111080), (278, 55540), (556, 27770), (695, 22216), (1112, 13885), (1390, 11108), (2777, 5560), (2780, 5554)]