199802060

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{126457}}^1$

素因数の和:126545

約数の個数: 24

約数和(自身を含む): 424898880

約数和(自身を除く): 225096820

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 126457, 252914, 505828, 632285, 1264570, 2529140, 9990103, 19980206, 39960412, 49950515, 99901030, 199802060]

約数ペア:

[(1, 199802060), (2, 99901030), (4, 49950515), (5, 39960412), (10, 19980206), (20, 9990103), (79, 2529140), (158, 1264570), (316, 632285), (395, 505828), (790, 252914), (1580, 126457)]