199177520

素因数分解:

$2^4\times 5^1\times {\mathrm{2489719}}^1$

素因数の和:2489732

約数の個数: 20

約数和(自身を含む): 463087920

約数和(自身を除く): 263910400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2489719, 4979438, 9958876, 12448595, 19917752, 24897190, 39835504, 49794380, 99588760, 199177520]

約数ペア:

[(1, 199177520), (2, 99588760), (4, 49794380), (5, 39835504), (8, 24897190), (10, 19917752), (16, 12448595), (20, 9958876), (40, 4979438), (80, 2489719)]