320513480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1144691}}^1$

素因数の和:1144709

約数の個数: 32

約数和(自身を含む): 824178240

約数和(自身を除く): 503664760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1144691, 2289382, 4578764, 5723455, 8012837, 9157528, 11446910, 16025674, 22893820, 32051348, 40064185, 45787640, 64102696, 80128370, 160256740, 320513480]

約数ペア:

[(1, 320513480), (2, 160256740), (4, 80128370), (5, 64102696), (7, 45787640), (8, 40064185), (10, 32051348), (14, 22893820), (20, 16025674), (28, 11446910), (35, 9157528), (40, 8012837), (56, 5723455), (70, 4578764), (140, 2289382), (280, 1144691)]