17939740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{9857}}^1$

素因数の和:9886

約数の個数: 48

約数和(自身を含む): 46372032

約数和(自身を除く): 28432292

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 9857, 19714, 39428, 49285, 68999, 98570, 128141, 137998, 197140, 256282, 275996, 344995, 512564, 640705, 689990, 896987, 1281410, 1379980, 1793974, 2562820, 3587948, 4484935, 8969870, 17939740]

約数ペア:

[(1, 17939740), (2, 8969870), (4, 4484935), (5, 3587948), (7, 2562820), (10, 1793974), (13, 1379980), (14, 1281410), (20, 896987), (26, 689990), (28, 640705), (35, 512564), (52, 344995), (65, 275996), (70, 256282), (91, 197140), (130, 137998), (140, 128141), (182, 98570), (260, 68999), (364, 49285), (455, 39428), (910, 19714), (1820, 9857)]