137741720

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{13399}}^1$

素因数の和:13667

約数の個数: 32

約数和(自身を含む): 311148000

約数和(自身を除く): 173406280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 10280, 13399, 26798, 53596, 66995, 107192, 133990, 267980, 535960, 3443543, 6887086, 13774172, 17217715, 27548344, 34435430, 68870860, 137741720]

約数ペア:

[(1, 137741720), (2, 68870860), (4, 34435430), (5, 27548344), (8, 17217715), (10, 13774172), (20, 6887086), (40, 3443543), (257, 535960), (514, 267980), (1028, 133990), (1285, 107192), (2056, 66995), (2570, 53596), (5140, 26798), (10280, 13399)]