155531440

素因数分解:

$2^4\times 5^1\times {\mathrm{1944143}}^1$

素因数の和:1944156

約数の個数: 20

約数和(自身を含む): 361610784

約数和(自身を除く): 206079344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1944143, 3888286, 7776572, 9720715, 15553144, 19441430, 31106288, 38882860, 77765720, 155531440]

約数ペア:

[(1, 155531440), (2, 77765720), (4, 38882860), (5, 31106288), (8, 19441430), (10, 15553144), (16, 9720715), (20, 7776572), (40, 3888286), (80, 1944143)]