71206840

素因数分解:

$2^3\times 5^1\times {\mathrm{1780171}}^1$

素因数の和:1780182

約数の個数: 16

約数和(自身を含む): 160215480

約数和(自身を除く): 89008640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1780171, 3560342, 7120684, 8900855, 14241368, 17801710, 35603420, 71206840]

約数ペア:

[(1, 71206840), (2, 35603420), (4, 17801710), (5, 14241368), (8, 8900855), (10, 7120684), (20, 3560342), (40, 1780171)]