80711420

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{23327}}^1$

素因数の和:23509

約数の個数: 24

約数和(自身を含む): 170481024

約数和(自身を除く): 89769604

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 692, 865, 1730, 3460, 23327, 46654, 93308, 116635, 233270, 466540, 4035571, 8071142, 16142284, 20177855, 40355710, 80711420]

約数ペア:

[(1, 80711420), (2, 40355710), (4, 20177855), (5, 16142284), (10, 8071142), (20, 4035571), (173, 466540), (346, 233270), (692, 116635), (865, 93308), (1730, 46654), (3460, 23327)]