26950180

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{18979}}^1$

素因数の和:19059

約数の個数: 24

約数和(自身を含む): 57395520

約数和(自身を除く): 30445340

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 18979, 37958, 75916, 94895, 189790, 379580, 1347509, 2695018, 5390036, 6737545, 13475090, 26950180]

約数ペア:

[(1, 26950180), (2, 13475090), (4, 6737545), (5, 5390036), (10, 2695018), (20, 1347509), (71, 379580), (142, 189790), (284, 94895), (355, 75916), (710, 37958), (1420, 18979)]