20198140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2311}}^1$

素因数の和:2362

約数の個数: 48

約数和(自身を含む): 46609920

約数和(自身を除く): 26411780

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 46, 76, 92, 95, 115, 190, 230, 380, 437, 460, 874, 1748, 2185, 2311, 4370, 4622, 8740, 9244, 11555, 23110, 43909, 46220, 53153, 87818, 106306, 175636, 212612, 219545, 265765, 439090, 531530, 878180, 1009907, 1063060, 2019814, 4039628, 5049535, 10099070, 20198140]

約数ペア:

[(1, 20198140), (2, 10099070), (4, 5049535), (5, 4039628), (10, 2019814), (19, 1063060), (20, 1009907), (23, 878180), (38, 531530), (46, 439090), (76, 265765), (92, 219545), (95, 212612), (115, 175636), (190, 106306), (230, 87818), (380, 53153), (437, 46220), (460, 43909), (874, 23110), (1748, 11555), (2185, 9244), (2311, 8740), (4370, 4622)]