68947420

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{19927}}^1$

素因数の和:20109

約数の個数: 24

約数和(自身を含む): 145633824

約数和(自身を除く): 76686404

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 692, 865, 1730, 3460, 19927, 39854, 79708, 99635, 199270, 398540, 3447371, 6894742, 13789484, 17236855, 34473710, 68947420]

約数ペア:

[(1, 68947420), (2, 34473710), (4, 17236855), (5, 13789484), (10, 6894742), (20, 3447371), (173, 398540), (346, 199270), (692, 99635), (865, 79708), (1730, 39854), (3460, 19927)]