15157940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{108271}}^1$

素因数の和:108287

約数の個数: 24

約数和(自身を含む): 36379392

約数和(自身を除く): 21221452

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 108271, 216542, 433084, 541355, 757897, 1082710, 1515794, 2165420, 3031588, 3789485, 7578970, 15157940]

約数ペア:

[(1, 15157940), (2, 7578970), (4, 3789485), (5, 3031588), (7, 2165420), (10, 1515794), (14, 1082710), (20, 757897), (28, 541355), (35, 433084), (70, 216542), (140, 108271)]