199957990

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{277}}^1\times {\mathrm{1951}}^1$

素因数の和:2272

約数の個数: 32

約数和(自身を含む): 371176704

約数和(自身を除く): 171218714

約数列:

[1, 2, 5, 10, 37, 74, 185, 277, 370, 554, 1385, 1951, 2770, 3902, 9755, 10249, 19510, 20498, 51245, 72187, 102490, 144374, 360935, 540427, 721870, 1080854, 2702135, 5404270, 19995799, 39991598, 99978995, 199957990]

約数ペア:

[(1, 199957990), (2, 99978995), (5, 39991598), (10, 19995799), (37, 5404270), (74, 2702135), (185, 1080854), (277, 721870), (370, 540427), (554, 360935), (1385, 144374), (1951, 102490), (2770, 72187), (3902, 51245), (9755, 20498), (10249, 19510)]