199421320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{712219}}^1$

素因数の和:712237

約数の個数: 32

約数和(自身を含む): 512798400

約数和(自身を除く): 313377080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 712219, 1424438, 2848876, 3561095, 4985533, 5697752, 7122190, 9971066, 14244380, 19942132, 24927665, 28488760, 39884264, 49855330, 99710660, 199421320]

約数ペア:

[(1, 199421320), (2, 99710660), (4, 49855330), (5, 39884264), (7, 28488760), (8, 24927665), (10, 19942132), (14, 14244380), (20, 9971066), (28, 7122190), (35, 5697752), (40, 4985533), (56, 3561095), (70, 2848876), (140, 1424438), (280, 712219)]