20145710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{439}}^1$

素因数の和:812

約数の個数: 32

約数和(自身を含む): 39251520

約数和(自身を除く): 19105810

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 353, 439, 706, 878, 1765, 2195, 3530, 4390, 4589, 5707, 9178, 11414, 22945, 28535, 45890, 57070, 154967, 309934, 774835, 1549670, 2014571, 4029142, 10072855, 20145710]

約数ペア:

[(1, 20145710), (2, 10072855), (5, 4029142), (10, 2014571), (13, 1549670), (26, 774835), (65, 309934), (130, 154967), (353, 57070), (439, 45890), (706, 28535), (878, 22945), (1765, 11414), (2195, 9178), (3530, 5707), (4390, 4589)]