1319780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{857}}^1$

素因数の和:884

約数の個数: 48

約数和(自身を含む): 3459456

約数和(自身を除く): 2139676

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, 857, 1540, 1714, 3428, 4285, 5999, 8570, 9427, 11998, 17140, 18854, 23996, 29995, 37708, 47135, 59990, 65989, 94270, 119980, 131978, 188540, 263956, 329945, 659890, 1319780]

約数ペア:

[(1, 1319780), (2, 659890), (4, 329945), (5, 263956), (7, 188540), (10, 131978), (11, 119980), (14, 94270), (20, 65989), (22, 59990), (28, 47135), (35, 37708), (44, 29995), (55, 23996), (70, 18854), (77, 17140), (110, 11998), (140, 9427), (154, 8570), (220, 5999), (308, 4285), (385, 3428), (770, 1714), (857, 1540)]