209316820

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1\times {\mathrm{967}}^1$

素因数の和:1192

約数の個数: 48

約数和(自身を含む): 448842240

約数和(自身を除く): 239525420

約数列:

[1, 2, 4, 5, 10, 20, 79, 137, 158, 274, 316, 395, 548, 685, 790, 967, 1370, 1580, 1934, 2740, 3868, 4835, 9670, 10823, 19340, 21646, 43292, 54115, 76393, 108230, 132479, 152786, 216460, 264958, 305572, 381965, 529916, 662395, 763930, 1324790, 1527860, 2649580, 10465841, 20931682, 41863364, 52329205, 104658410, 209316820]

約数ペア:

[(1, 209316820), (2, 104658410), (4, 52329205), (5, 41863364), (10, 20931682), (20, 10465841), (79, 2649580), (137, 1527860), (158, 1324790), (274, 763930), (316, 662395), (395, 529916), (548, 381965), (685, 305572), (790, 264958), (967, 216460), (1370, 152786), (1580, 132479), (1934, 108230), (2740, 76393), (3868, 54115), (4835, 43292), (9670, 21646), (10823, 19340)]