99451280

素因数分解:

$2^4\times 5^1\times {\mathrm{1243141}}^1$

素因数の和:1243154

約数の個数: 20

約数和(自身を含む): 231224412

約数和(自身を除く): 131773132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1243141, 2486282, 4972564, 6215705, 9945128, 12431410, 19890256, 24862820, 49725640, 99451280]

約数ペア:

[(1, 99451280), (2, 49725640), (4, 24862820), (5, 19890256), (8, 12431410), (10, 9945128), (16, 6215705), (20, 4972564), (40, 2486282), (80, 1243141)]