4399780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2857}}^1$

素因数の和:2884

約数の個数: 48

約数和(自身を含む): 11523456

約数和(自身を除く): 7123676

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 2857, 5714, 11428, 14285, 19999, 28570, 31427, 39998, 57140, 62854, 79996, 99995, 125708, 157135, 199990, 219989, 314270, 399980, 439978, 628540, 879956, 1099945, 2199890, 4399780]

約数ペア:

[(1, 4399780), (2, 2199890), (4, 1099945), (5, 879956), (7, 628540), (10, 439978), (11, 399980), (14, 314270), (20, 219989), (22, 199990), (28, 157135), (35, 125708), (44, 99995), (55, 79996), (70, 62854), (77, 57140), (110, 39998), (140, 31427), (154, 28570), (220, 19999), (308, 14285), (385, 11428), (770, 5714), (1540, 2857)]