81183620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{579883}}^1$

素因数の和:579899

約数の個数: 24

約数和(自身を含む): 194841024

約数和(自身を除く): 113657404

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 579883, 1159766, 2319532, 2899415, 4059181, 5798830, 8118362, 11597660, 16236724, 20295905, 40591810, 81183620]

約数ペア:

[(1, 81183620), (2, 40591810), (4, 20295905), (5, 16236724), (7, 11597660), (10, 8118362), (14, 5798830), (20, 4059181), (28, 2899415), (35, 2319532), (70, 1159766), (140, 579883)]