1379980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{9857}}^1$

素因数の和:9873

約数の個数: 24

約数和(自身を含む): 3312288

約数和(自身を除く): 1932308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 9857, 19714, 39428, 49285, 68999, 98570, 137998, 197140, 275996, 344995, 689990, 1379980]

約数ペア:

[(1, 1379980), (2, 689990), (4, 344995), (5, 275996), (7, 197140), (10, 137998), (14, 98570), (20, 68999), (28, 49285), (35, 39428), (70, 19714), (140, 9857)]