209899004

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{5557}}^1$

素因数の和:5658

約数の個数: 48

約数和(自身を含む): 448197120

約数和(自身を除く): 238298116

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 71, 76, 133, 142, 266, 284, 497, 532, 994, 1349, 1988, 2698, 5396, 5557, 9443, 11114, 18886, 22228, 37772, 38899, 77798, 105583, 155596, 211166, 394547, 422332, 739081, 789094, 1478162, 1578188, 2761829, 2956324, 5523658, 7496393, 11047316, 14992786, 29985572, 52474751, 104949502, 209899004]

約数ペア:

[(1, 209899004), (2, 104949502), (4, 52474751), (7, 29985572), (14, 14992786), (19, 11047316), (28, 7496393), (38, 5523658), (71, 2956324), (76, 2761829), (133, 1578188), (142, 1478162), (266, 789094), (284, 739081), (497, 422332), (532, 394547), (994, 211166), (1349, 155596), (1988, 105583), (2698, 77798), (5396, 38899), (5557, 37772), (9443, 22228), (11114, 18886)]