20286910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{821}}^1$

素因数の和:1188

約数の個数: 32

約数和(自身を含む): 41902272

約数和(自身を除く): 21615362

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 353, 706, 821, 1642, 1765, 2471, 3530, 4105, 4942, 5747, 8210, 11494, 12355, 24710, 28735, 57470, 289813, 579626, 1449065, 2028691, 2898130, 4057382, 10143455, 20286910]

約数ペア:

[(1, 20286910), (2, 10143455), (5, 4057382), (7, 2898130), (10, 2028691), (14, 1449065), (35, 579626), (70, 289813), (353, 57470), (706, 28735), (821, 24710), (1642, 12355), (1765, 11494), (2471, 8210), (3530, 5747), (4105, 4942)]